Exhibit 4.2

EXECUTION VERSION

FIFTH SUPPLEMENTAL INDENTURE

Dated as of January 11, 2024

Supplementing that Certain

INDENTURE

Dated as of April 23, 2015

Among

ENERSYS,

THE GUARANTORS NAMED HEREIN

and

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION,

as Trustee

6.625% Senior Notes due 2032

TABLE OF CONTENTS

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This Fifth Supplemental Indenture, dated as of January 11, 2024 (the “Fifth Supplemental Indenture”), among EnerSys, a Delaware corporation (herein called the “Company”), the Guarantors party hereto (the “Guarantors”) and U.S. Bank Trust Company, National Association, as successor in interest to U.S. Bank National Association, as successor in interest to MUFG Union Bank, N.A., as Trustee under the Base Indenture (as defined herein) and hereunder (the “Trustee”), supplements that certain Indenture, dated as of April 23, 2015, among the Company, the Guarantors named therein and the Trustee (as it may be amended or supplemented from time to time in accordance with the terms thereof, the “Base Indenture” and subject to Section 1.4 hereof, together with this Fifth Supplemental Indenture, the “Indenture”).

RECITALS OF THE COMPANY

The Company and certain of the Guarantors previously executed and delivered to the Trustee the Base Indenture providing for the issuance from time to time of one or more series of the Company’s senior unsecured debt securities (herein and in the Base Indenture called the “Securities”), the forms and terms of which are to be determined as set forth in Sections 201 and 301 of the Base Indenture, and the guarantees thereof (the “Guarantees”) by the Guarantors.

Section 901 of the Base Indenture provides, among other things, that the Company, the Guarantors and the Trustee may enter into indentures supplemental to the Base Indenture for, among other things, the purposes of (a) establishing the form or terms of Securities of any series as permitted by Sections 201 and 301 of the Base Indenture and (b) adding to or changing any of the provisions to the Base Indenture in certain circumstances.

The Company desires to create a series of Securities designated as its “6.625% Senior Notes due 2032” pursuant to the terms of this Fifth Supplemental Indenture.

The Company has duly authorized the execution and delivery of this Fifth Supplemental Indenture and the Notes (as defined herein) to be issued from time to time, as provided for in the Indenture.

Each Guarantor has duly authorized its Guarantee of the Notes and to provide therefor each Guarantor has duly authorized the execution and delivery of this Fifth Supplemental Indenture.

All things necessary have been done to make this Fifth Supplemental Indenture a valid and legally binding agreement of the Company in accordance with its terms and to make the Notes, when executed by the Company and authenticated and delivered under the Indenture and duly issued by the Company, the valid and legally binding obligations of the Company.

All things necessary have been done to make the Guarantees, upon execution and delivery of this Fifth Supplemental Indenture, the valid and legally binding obligations of each Guarantor and to make this Fifth Supplemental Indenture a valid and legally binding agreement of each Guarantor, in accordance with its terms.

ARTICLE I

Issuance of Securities

Section 1.1. Issuance of Notes; Principal Amount; Maturity; Title.

(1) On January 11, 2024, the Company shall issue and deliver to the Trustee, and the Trustee shall authenticate, the Initial Notes (as defined herein) substantially in the form set forth in Section 3.2 hereof, in each case with such appropriate insertions, omissions, substitutions and other variations as are required or permitted by the Base Indenture and this Fifth Supplemental Indenture, and with such letters, numbers, or other marks of identification and such legends or endorsements placed thereon as may be required to comply with applicable tax laws or the rules of any securities exchange or Depositary therefor or as may, consistently herewith, be determined by the Responsible Officer executing such Notes, as evidenced by the execution of such Notes.

(2) The Initial Notes to be issued pursuant to the Indenture shall be issued in the aggregate principal amount of $300,000,000 and shall mature on January 15, 2032, unless the Notes are redeemed prior to that date as described in Section 5.1 hereof. The aggregate principal amount of Initial Notes Outstanding at any time may not exceed $300,000,000, except for Notes issued, authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Notes of the series pursuant to Sections 304, 305, 306, 906 or 1107 of the Base Indenture and except for any Notes which, pursuant to Section 303 of the Base Indenture, are deemed never to have been authenticated and delivered. The Company may without the consent of the Holders, issue additional Notes hereunder as part of the same series and on the same terms and conditions (and having the same Guarantors) and with the same CUSIP numbers as the Initial Notes, but such additional Notes may be offered at a different offering price or have a different issue date, initial interest accrual date or initial interest payment date (the “Additional Notes”); provided that if any Additional Notes are not fungible with the Initial Notes for U.S. federal income tax purposes, such Additional Notes may not have the same CUSIP or ISIN number as the Initial Notes; provided further that such Additional Notes issued pursuant to Regulation S under the Securities Act may initially be issued under a temporary CUSIP during the applicable Restricted Period.

(3) The Notes shall be issued only in fully registered form without coupons in minimum denominations of $2,000 and any integral multiple of $1,000 in excess thereof.

(4) Pursuant to the terms hereof and Sections 201 and 301 of the Base Indenture, the Company hereby creates a series of Securities designated as the “6.625% Senior Notes due 2032” of the Company (as amended or supplemented from time to time, that are issued under the Indenture, including both the Initial Notes and the Additional Notes, if any, the “Notes”), which Notes shall be deemed “Securities” for all purposes under the Base Indenture.

Section 1.2. Interest.

(1) Interest on a Note will accrue at the per annum rate of 6.625%, from and including the date specified on the face of such Note to, but excluding, the date on which the principal thereof is paid, deemed paid or made available for payment and, in each case, will be paid on the basis of a 360-day year comprised of twelve 30-day months.

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(2) The Company shall pay interest on the Notes semi-annually in arrears on January 15 and July 15 of each year (each, an “Interest Payment Date”), commencing July 15, 2024.

(3) Interest shall be paid on each Interest Payment Date to the registered Holders of the Notes after the close of business on the Regular Record Date (as defined herein).

(4) Amounts due on the Stated Maturity or earlier Redemption Date of the Notes will be payable at the Corporate Trust Office. The Company shall make payments of principal, premium, if any, and interest or the Change of Control Payment (as defined herein) in connection with a Change of Control Triggering Event (as defined herein) in respect of the Notes in book-entry form to DTC in immediately available funds, while disbursement of such payments to owners of beneficial interests in Notes in book-entry form will be made in accordance with the procedures of DTC and its participants in effect from time to time. The Company may at any time designate additional Paying Agents or rescind the designation of any Paying Agent or approve a change in the office through which any Paying Agent acts, except that the Company shall be required to maintain a Paying Agent in each Place of Payment for the Notes. Neither the Company nor the Trustee shall impose any service charge for any transfer or exchange of a Note. However, the Company or the Trustee may require Holders of the Notes to pay any taxes or other governmental charges in connection with a transfer or exchange of Notes.

(5) If any Interest Payment Date, Stated Maturity or earlier Redemption Date or Change of Control Payment Date (as defined herein) falls on a day that is not a Business Day in the City of New York or in the Place of Payment, the Company shall make the required payment of principal, premium, if any, and/or interest or Change of Control Payment in connection with a Change of Control Triggering Event on the next succeeding Business Day as if it were made on the date payment was due, and no interest will accrue on the amount so payable for the period from and after that Interest Payment Date, Stated Maturity or earlier Redemption Date or Change of Control Payment Date, as the case may be, to such next succeeding Business Day.

(6) The Trustee shall have no obligation to calculate or verify the calculation of the accrued and unpaid interest or any premium payable on the Notes.

Section 1.3. No Sinking Fund; Open Market Purchases.

The Company is not required to make mandatory redemption payments or sinking fund payments with respect to the Notes. For the avoidance of doubt, the Company may be required to offer to purchase Notes as described under Section 6.2 hereof. The Company may at any time, and from time to time, purchase Notes in the open market or otherwise.

Section 1.4. Relationship with Base Indenture.

The terms and provisions contained in the Base Indenture will constitute, and are hereby expressly made, a part of this Fifth Supplemental Indenture. However, to the extent any provision of the Base Indenture conflicts with the express provisions of this Fifth Supplemental Indenture, the provisions of this Fifth Supplemental Indenture will govern and be controlling. For the avoidance of doubt, the terms and provisions contained in this Fifth Supplemental Indenture shall only apply to the Notes issued under this Fifth Supplemental Indenture and shall not apply to any other series of Securities issued pursuant to the Base Indenture.

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ARTICLE II

Definitions and Other Provisions of General Application

Section 2.1. Definitions.

For all purposes of this Fifth Supplemental Indenture (except as herein otherwise expressly provided or unless the context of this Fifth Supplemental Indenture otherwise requires):

(1) any reference to an “Article” or a “Section” refers to an Article or a Section, as the case may be, of this Fifth Supplemental Indenture;

(2) the words “herein,” “hereof” and “hereunder” and other words of similar import refer to this Fifth Supplemental Indenture as a whole and not to any particular Article, Section or other subdivision;

(3) “including” means including without limitation;

(4) unless otherwise provided, references to agreements and other instruments shall be deemed to include all amendments and other modifications to such agreements and instruments, but only to the extent such amendments and other modifications are not prohibited by the terms of this Indenture.

The terms defined in this Section 2.1 (except as herein otherwise expressly provided or unless the context of this Fifth Supplemental Indenture otherwise requires) for all purposes of this Fifth Supplemental Indenture and of any indenture supplemental hereto have the respective meanings specified in this Section 2.1. All other terms used in this Fifth Supplemental Indenture that are defined in the Base Indenture, either directly or by reference therein (except as herein otherwise expressly provided or unless the context of this Fifth Supplemental Indenture otherwise requires), have the respective meanings assigned to such terms in the Base Indenture, as in force as of the date of this Fifth Supplemental Indenture as originally executed; provided that any term that is defined in both the Base Indenture and this Fifth Supplemental Indenture shall have the meaning assigned to such term in this Fifth Supplemental Indenture.

“Acquired EBITDA” means, with respect to any Acquired Entity or Business for any period, the amount for such period of Consolidated EBITDA of such Acquired Entity or Business, as applicable, all as determined on a consolidated basis for such Acquired Entity or Business, as applicable.

“Acquired Entity or Business” has the meaning specified in the definition of the term “Consolidated EBITDA.”

“Additional Notes” has the meaning specified in Section 1.1(2) hereof.

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“Applicable Premium” means, with respect to a Note on any date of redemption, the greater of:

(A) 1.0% of the principal amount of such Note, and

(B) the excess, if any, of (a) the present value as of such date of redemption of (i) the redemption price of such Note on January 15, 2027 (such redemption price being set forth under Section 5.1(b)) plus (ii) all required interest payments due on such Note through January 15, 2027 (excluding accrued but unpaid interest to the date of redemption), computed using a discount rate equal to the Treasury Rate as of such date of redemption plus 50 basis points, over (b) the then outstanding principal amount of such Note.

“Applicable Procedures” means, with respect to a Depositary, as to any matter at any time, the policies and procedures of such Depositary, if any, that are applicable to such matter at such time.

“Attributable Indebtedness” means, with regard to a sale and leaseback arrangement of a Principal Property that is a Capitalized Lease, the amount thereof accounted for as a liability in accordance with GAAP.

“Bankruptcy Law” means Title 11, United States Code, or any similar federal or state or foreign law for the relief of debtors.

“Below Investment Grade Rating Event” means the Notes are rated below an Investment Grade Rating by each of the Rating Agencies during the 60-day period following the earlier of (1) the occurrence of a Change of Control or (2) public notice of the Company’s intention to effect a Change of Control; provided, however, that if (i) during such 60-day period one or more Rating Agencies has publicly announced that it is considering the possible downgrade of the Notes and (ii) a downgrade by each of the Rating Agencies that has made such an announcement would result in a Below Investment Grade Rating Event, then such 60-day period shall be extended for such time as the rating of the Notes by any such Rating Agency remains under publicly announced consideration for possible downgrade to a rating below an Investment Grade Rating and a downgrade by such Rating Agency to a rating below an Investment Grade Rating could cause a Below Investment Grade Rating Event. Notwithstanding the foregoing, a Below Investment Grade Rating Event will not be deemed to have occurred in respect of a particular Change of Control (and thus will not be deemed a Below Investment Grade Rating Event for purposes of the definition of “Change of Control Triggering Event”) if either Rating Agency shall have put forth a written statement to the effect that such downgrade is not attributable in whole or in part to the applicable Change of Control (whether or not the applicable Change of Control has occurred at the time of the rating event).

“Capitalized Lease” means all leases that are required to be, in accordance with GAAP, recorded as capitalized leases; provided that for all purposes hereunder the amount of obligations under any Capitalized Lease shall be the amount thereof accounted for as a liability in accordance with generally accepted accounting principles in the United States, as in effect on April 23, 2015.

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“Change of Control” means the occurrence of any of the following: (1) the direct or indirect sale, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the properties or assets of the Company and its Subsidiaries taken as a whole to any “person” (as that term is used in Section 13(d)(3) of the Exchange Act) other than the Company or one of its Subsidiaries; (2) the adoption of a plan relating to the Company’s liquidation or dissolution; (3) the Company becomes aware of (by way of a report or any other filing pursuant to Section 13(d) of the Exchange Act, proxy, vote, written notice or otherwise) the consummation of any transaction (including, without limitation, any merger or consolidation) the result of which is that any “person” (as that term is used in Section 13(d)(3) of the Exchange Act) becomes the beneficial owner, directly or indirectly, of more than 50% of the total voting power of all shares of the capital stock of the Company entitled to vote generally in elections of directors; or (4) the Company consolidates with, or merges with or into, any “person” (as that term is used in Section 13(d) of the Exchange Act), or any “person” (as that term is used in Section 13(d) of the Exchange Act) consolidates with, or merges with or into, the Company, in any such event pursuant to a transaction in which any of the outstanding voting stock of the Company or such other “person” (as that term is used in Section 13(d) of the Exchange Act) is converted into or exchanged for cash, securities or other property, other than any such transaction where the shares of the voting stock of the Company outstanding immediately prior to such transaction constitute, or are converted into or exchanged for, a majority of the voting stock of the surviving “person” (as that term is used in Section 13(d) of the Exchange Act) immediately after giving effect to such transaction.

Notwithstanding the foregoing, a transaction will not be deemed to involve a Change of Control if (1) the Company becomes a direct or indirect wholly-owned Subsidiary of a holding company and (2)(A) the direct or indirect holders of the voting stock of such holding company immediately following that transaction are substantially the same as the holders of the voting stock of the Company immediately prior to that transaction or (B) immediately following that transaction no person (other than a holding company satisfying the requirements of this sentence) is the beneficial owner, directly or indirectly, of more than 50% of the voting stock of such holding company.

“Change of Control Offer” has the meaning specified in Section 6.2(1) hereof.

“Change of Control Payment” has the meaning specified in Section 6.2(1) hereof.

“Change of Control Payment Date” has the meaning specified in Section 6.2(2) hereof.

“Change of Control Triggering Event” means the occurrence of both a Change of Control and a Below Investment Grade Rating Event.

“Clearstream” means Clearstream Banking, S.A.

“Common Stock” means the common stock, par value $0.01 per share, of the Company.

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“Consolidated EBITDA” means, with respect to any Person for any period, the Consolidated Net Income of such Person for such period:

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There shall be included in determining Consolidated EBITDA for any period, without duplication, the Acquired EBITDA of any Person, property, business or asset acquired by the Company or any Subsidiary during such period (but not the Acquired EBITDA of any related Person, property, business or assets to the extent not so acquired), to the extent not subsequently sold, transferred or otherwise disposed of by the Company or such Subsidiary during such period (each such Person, property, business or asset acquired and not subsequently so disposed of, an “Acquired Entity or Business”), based on the actual Acquired EBITDA of such Acquired Entity or Business for such period (including the portion thereof occurring during such period but prior to such acquisition). For purposes of determining the Secured Leverage Ratio, there shall be excluded in determining Consolidated EBITDA for any period the Disposed EBITDA of any Person, property, business or asset sold, transferred or otherwise disposed of, closed or classified as discontinued operations by the Company or any Subsidiary during such period (each such Person, property, business or asset so sold or disposed of, a “Sold Entity or Business”), based on the actual Disposed EBITDA of such Sold Entity or Business for such period (including the portion thereof occurring during such period but prior to such sale, transfer or disposition).

Any adjustments in the calculation of Consolidated Net Income shall be without duplication of any adjustments to Consolidated EBITDA, and any adjustments to Consolidated EBITDA shall be without duplication of any adjustments to Consolidated Net Income.

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“Consolidated Net Income” means, with respect to any Person for any period, the net income (loss) of such Person and its Subsidiaries for such period determined on a consolidated basis in accordance with GAAP; provided, however, that there will not be included in such Consolidated Net Income, without duplication:

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In addition, to the extent not already excluded from the Consolidated Net Income of such Person and its Subsidiaries, notwithstanding anything to the contrary in the foregoing, Consolidated Net Income shall exclude (i) any expenses and charges that are reimbursed in such period by indemnification or other reimbursement provisions in connection with any investment or any sale, conveyance, transfer or other disposition of assets permitted hereunder and (ii) to the extent covered by insurance and actually reimbursed in such period, or, so long as the Company has made a determination that there exists reasonable evidence that such amount will in fact be reimbursed by the insurer and only to the extent that such amount is (A) not denied by the applicable carrier in writing within 180 days and (B) in fact reimbursed within 365 days of the date of such evidence (with a deduction for any amount so added back to the extent not so reimbursed within such 365 days), expenses with respect to liability or casualty events or business interruption.

“Consolidated Net Tangible Assets” means the aggregate amount of assets after deducting therefrom (1) all current liabilities, except for (a) notes and loans payable, (b) current maturities of long-term debt and (c) current maturities of obligations under capital leases and (2) all goodwill, trade names, trademarks, patents, unamortized debt discount and expense and other like intangibles, all as set forth on the most recent balance sheet of the Company and its consolidated Subsidiaries and computed in accordance with GAAP.

“Credit Agreement” means the credit agreement entered into as of August 4, 2017 among the Company, the subsidiary guarantors party thereto, each lender from time to time party thereto and Bank of America, N.A., as administrative agent, as amended, amended and restated, supplemented or otherwise modified from time to time, and any replacement, renewal, extension, refinancing or other substitution thereof.

“Custodian” means any custodian, receiver, trustee, assignee, liquidator or other similar official under any Bankruptcy Law.

“Disposed EBITDA” means, with respect to any Sold Entity or Business for any period, the amount for such period of Consolidated EBITDA of such Sold Entity or Business, as applicable, all as determined on a consolidated basis for such Sold Entity or Business, as applicable.

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“Disposition” means the sale, transfer, license, lease or other disposition of any property by any Person (including any sale and leaseback transaction), including any sale, assignment, transfer or other disposal, with or without recourse, of any notes or accounts receivable or any rights and claims associated therewith.

“Disqualified Stock” means, with respect to any Person, any capital stock which by its terms (or by the terms of any security into which it is convertible or for which it is exchangeable at the option of the holder) or upon the happening of any event:

(1) matures (excluding any maturities as a result of an optional redemption by the issuer thereof) or is mandatorily redeemable pursuant to a sinking fund obligation or otherwise;

(2) is convertible or exchangeable at the option of the holder for indebtedness or Disqualified Stock; or

(3) is mandatorily redeemable or must be purchased upon the occurrence of certain events or otherwise, in whole or in part;

in each case on or prior to 91 days after the earlier of the Stated Maturity of the Notes or the date the Notes are no longer outstanding; provided, however, that if such capital stock is issued to any employee or to any plan for the benefit of employees of the Company or its Subsidiaries or by any such plan to such employees, such capital stock shall not constitute Disqualified Stock solely because it may be required to be repurchased by the Company or its Subsidiaries in order to satisfy obligations as a result of such employee’s death or disability; provided, further, however, that any capital stock that would not constitute Disqualified Stock but for provisions thereof giving holders thereof the right to require such Person to purchase or redeem such capital stock upon the occurrence of a “change of control” occurring on or prior to 91 days after the Stated Maturity of such Notes shall not constitute Disqualified Stock if:

(1) the “change of control” provisions applicable to such capital stock are not more favorable, taken as a whole, to the holders of such capital stock than the terms applicable to such Notes and described in Section 6.2; and

(2) any such requirement only becomes operative after compliance with such terms applicable to such Notes, including the purchase of any such Notes tendered pursuant thereto.

“DTC” means The Depository Trust Company, a New York corporation.

“Equity Offering” means any primary issuance (whether done publicly or privately) of capital stock of the Company (other than Disqualified Stock) to Persons who are not Subsidiaries of the Company other than (1) public offerings with respect to Common Stock registered on Form S-8 and (2) issuances upon exercise of options by employees of the Company or any of its Subsidiaries.

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“Euroclear” means Euroclear Bank, S.A./N.V., as operator of the Euroclear system.

“Event of Default” has the meaning specified in Section 4.1 hereof.

“GAAP” means generally accepted accounting principles in the United States, as in effect on the Issue Date.

“Hedging Obligations” means, with respect to any Person, the obligations of such Person under any Swap Contract.

“Indebtedness” of any Person means, without duplication, (i) any obligation of such Person for money borrowed, (ii) any obligation of such Person evidenced by bonds, debentures, notes or other similar instruments and (iii) any reimbursement obligation of such Person in respect of letters of credit or other similar instruments which support financial obligations which would otherwise become Indebtedness, to the extent drawn upon.

“Initial Notes” means Notes in an aggregate principal amount of $300,000,000 initially issued under this Fifth Supplemental Indenture in accordance with Section 1.1(2) hereof.

“Interest Payment Date” has the meaning specified in Section 1.2(2) hereof.

“Investment” means, as to any Person, any direct or indirect acquisition or investment by such Person, whether by means of (a) the purchase or other acquisition of capital stock or debt or other securities of another Person, (b) a loan, advance or capital contribution to, guarantee or assumption of debt of, or purchase or other acquisition of any other debt or equity participation or interest in, another Person, including any partnership or joint venture interest in such other Person and any arrangement pursuant to which the investor incurs debt for borrowed money in respect of such Person or (c) the purchase or other acquisition (in one transaction or a series of related transactions) of all or substantially all of the property and assets or business of another Person or assets constituting a business unit, line of business or division of such Person. For purposes of covenant compliance, the amount of any Investment shall be the amount actually invested, without adjustment for subsequent increases or decreases in the value of such Investment, less any amount paid back, repaid, returned, distributed or otherwise received in respect of such Investment.

“Investment Grade Rating” means a rating equal to or higher than Baa3 (or the equivalent) by Moody’s and BBB- (or the equivalent) by S&P.

“Issue Date” means January 11, 2024.

“LCT Election” has the meaning specified in Section 2.2 hereof.

“LCT Test Date” has the meaning specified in Section 2.2 hereof.

“Lien” means any pledge, mortgage, lien, encumbrance or other security interest (including conditional sale or other title retention agreements having substantially the same economic effect as any of the foregoing).

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“Limited Condition Transaction” means (1) any investment or acquisition (whether by merger, consolidation or other business combination or the acquisition of capital stock or otherwise), whose consummation is not conditioned on the availability of, or on obtaining, third-party financing, (2) any redemption, repurchase, defeasance, satisfaction and discharge or repayment of Indebtedness requiring irrevocable notice in advance of such redemption, repurchase, defeasance, satisfaction and discharge or repayment and (3) any dividends or distributions on, or redemptions of, the Company’s capital stock requiring irrevocable notice in advance thereof.

“Moody’s” means Moody’s Investors Service, Inc. and its successors.

“Notes” has the meaning specified in Section 1.1(4) hereof.

“Notice” has the meaning specified in Section 8.5 hereof.

“Notice of Default” has the meaning specified in Section 4.1(3) hereof.

“Person” means any individual, corporation, partnership, joint venture, association, joint-stock company, trust, unincorporated organization, limited liability company, government or any agency or political subdivision thereof or any other entity.

“Principal Property” means any office, distribution center, warehouse, office building, operating facility, other parcel of real property or equipment (including related land and improvements thereon and fixtures comprising a part thereof) located within the United States of America owned or hereafter acquired by the Company or any of its Subsidiaries, having a book value in excess of 1.5% of Consolidated Net Tangible Assets at the time of determination thereof, in each case other than any such property or any portion of thereof which, in the opinion of the Board of Directors of the Company, is not of material importance to the total business conducted by the Company and its Subsidiaries, taken as a whole.

“Pro Forma Basis” and “Pro Forma Effect” means whenever a financial ratio or test is to be calculated on a pro forma basis, the reference to the “Test Period” for purposes of calculating such financial ratio or test shall be deemed to be a reference to, and shall be based on, the most recently ended Test Period for which internal financial statements of the Company are available (as determined in good faith by the Company).

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“Rating Agencies” means (1) each of Moody’s and S&P; and (2) if either of Moody’s or S&P ceases to rate the Notes or fails to make a rating of the Notes publicly available for reasons outside of the Company’s control, a “nationally recognized statistical rating organization” within the meaning of Section 3(a)(62) under the Exchange Act, as amended, selected by the Company (as certified by a Company Resolution) as a replacement agency for Moody’s or S&P, or both, as the case may be.

“Regular Record Date” for interest payable in respect of any Note on any Interest Payment Date means the January 1 or July 1, as applicable, immediately preceding the relevant Interest Payment Date (whether or not a Business Day).

“Regulation S Global Note” has the meaning specified in Section 3.1(3) hereof.

“Restricted Legend” has the meaning specified in Section 3.3(3) hereof.

“Restricted Period” with respect to any Notes, means the period of 40 consecutive days beginning on and including the later of (a) the day on which such Notes are first offered to persons other than distributors (as defined in Regulation S under the Securities Act) in reliance on Regulation S, notice of which day shall be promptly given by the Company to the Trustee, and (b) the Issue Date, and with respect to any Additional Notes, it means the comparable period of 40 consecutive days.

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“S&P” means S&P Global Ratings and its successors.

“Secured Leverage Ratio” means, as of any date of determination, the ratio of (x) (i) the consolidated Indebtedness (actually outstanding) secured by a Lien as of such date less (ii) unrestricted cash and cash equivalents of the Company and its Subsidiaries to (y) the aggregate amount of Consolidated EBITDA for the period of the most recent four consecutive fiscal quarters ending prior to the date of such determination for which internal consolidated financial statements of the Company are available, in each case with such pro forma adjustments as are consistent with the pro forma adjustments set forth in the definition of “Pro Forma Basis.”

“Security Registrar” means the Security Registrar for the Notes, which shall initially be U.S. Bank Trust Company, National Association, or any successor entity thereof, subject to replacement as set forth in the Base Indenture.

“Sold Entity or Business” has the meaning ascribed to that term in “Consolidated EBITDA.”

“Specified Transaction” means any Investment, Disposition, or incurrence or repayment of Indebtedness.

“Stated Maturity” when used with respect to (i) any Note or any installment of interest thereon, means the date specified in such Note as the fixed date on which the principal amount of such Note or such installment of interest is due and payable and (ii) any other indebtedness or any installment of interest thereon, means the date specified in the instrument governing such indebtedness as the fixed date on which the principal of such indebtedness or such installment of interest is due and payable.

“Subsidiary” of any Person means (i) a corporation a majority of the outstanding voting stock of which is at the time, directly or indirectly, owned by such Person, by one or more Subsidiaries of such Person, or by such Person and one or more Subsidiaries thereof or (ii) any other Person (other than a corporation), including, without limitation, a partnership or joint venture, in which such Person, one or more Subsidiaries thereof, or such Person and one or more Subsidiaries thereof, directly or indirectly, at the date of determination thereof, has at least majority ownership interest entitled to vote in the election of directors, managers or trustees thereof (or other Persons performing similar functions).

“Swap Contract” means (a) any and all rate swap transactions, basis swaps, credit derivative transactions, forward rate transactions, commodity swaps, commodity options, forward contracts, future contracts, equity or equity index swaps or options, bond or bond price or bond index swaps or options or forward bond or forward bond price or forward bond index transactions, interest rate options, forward foreign exchange transactions, cap transactions, floor transactions, collar transactions, currency swap transactions, cross-currency rate swap transactions, currency options, spot contracts, repurchase agreements, reverse repurchase agreements, sell buy back and buy sell back agreements, and securities lending and borrowing agreements or any other similar transactions or any combination of any of the foregoing

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(including any options to enter into any of the foregoing), whether or not any such transaction is governed by or subject to any master agreement, and (b) any and all transactions of any kind, and the related confirmations, which are subject to the terms and conditions of, or governed by, any form of master agreement published by the International Swaps and Derivatives Association, Inc., any International Foreign Exchange Master Agreement, or any other master agreement (any such master agreement, together with any related schedules, a “Master Agreement”), including any such obligations or liabilities under any Master Agreement.

“Test Period” means, at any date of determination, the most recently completed four consecutive fiscal quarters of the Company ending on or prior to such date.

“Treasury Rate” means as of any date of redemption of Notes, the yield to maturity at the time of computation of U.S. Treasury securities with a constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 (519) that has become publicly available at least two Business Days prior to the Redemption Date (or, if such Statistical Release is no longer published, any publicly available source or similar market data)) most nearly equal to the period from the Redemption Date to January 15, 2027; provided, however, that if the period from the Redemption Date to January 15, 2027 is not equal to the constant maturity of a U.S. Treasury security for which a weekly average yield is given, the Treasury Rate shall be obtained by linear interpolation (calculated to the nearest one-twelfth of a year) from the weekly average yields of U.S. Treasury securities for which such yields are given, except that if the period from the Redemption Date to January 15, 2027 is less than one year, the weekly average yield on actually traded U.S. Treasury securities adjusted to a constant maturity of one year will be used.

“U.S. Person” means a “U.S. person” as defined in Regulation S under the Securities Act.

Section 2.2. Limited Condition Transactions.

When calculating the availability under any basket or ratio under this Fifth Supplemental Indenture or compliance with any provision of this Fifth Supplemental Indenture in connection with any Limited Condition Transaction and any actions or transactions related thereto (including the incurrence of Liens and the use of proceeds thereof and repayments), in each case, at the option of the Company (the Company’s election to exercise such option, an “LCT Election”), the date of determination for availability under any such basket or ratio and whether any such action or transaction is permitted (or any requirement or condition therefor is complied with or satisfied (including, without limitation, as to the absence of any continuing default or Event of Default)) under this Fifth Supplemental Indenture shall be deemed to be the date (the “LCT Test Date”) the definitive agreements for such Limited Condition Transaction are entered into (or, if applicable, the date of delivery of an irrevocable notice (which may be conditional), declaration of a dividend or similar event) and if, after giving Pro Forma Effect to the Limited Condition Transaction and any actions or transactions related thereto (including the incurrence of Liens and the use of proceeds thereof and repayments) and any related pro forma adjustments, the Company or any of its Subsidiaries would have been permitted to take such actions or consummate such transactions on the relevant LCT Test Date in compliance with such ratio, test or basket (and any related requirements and conditions), such ratio, test or basket (and any related requirements and conditions) shall be deemed to have been complied with (or satisfied)

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for all purposes; provided that (a) compliance with such ratios, tests or baskets (and any related requirements and conditions) shall not be determined or tested at any time after the applicable LCT Test Date for such Limited Condition Transaction and any actions or transactions related thereto and (b) Consolidated EBITDA for purposes of the Secured Leverage Ratio will be calculated using an assumed interest rate based on the indicative interest rate contained in any financing commitment documentation with respect to such Indebtedness or, if no such indicative interest rate exists, as reasonably determined by the Company in good faith.

For the avoidance of doubt, if the Company has made an LCT Election, (1) if any of the ratios, tests or baskets for which compliance was determined or tested as of the LCT Test Date would at any time after the LCT Test Date have been exceeded or otherwise failed to have been complied with as a result of fluctuations in any such ratio, test or basket, including due to fluctuations in Consolidated EBITDA of the Company, such baskets, tests or ratios will not be deemed to have been exceeded or failed to have been complied with as a result of such fluctuations (and no default or Event of Default shall be deemed to have occurred or be continuing and such baskets, tests or ratios need not be tested at the consummation of the Limited Condition Transaction), and (2) in calculating the availability under any ratio, test or basket in connection with any action or transaction unrelated to such Limited Condition Transaction following the relevant LCT Test Date and prior to the earlier of the date on which such Limited Condition Transaction is consummated and the date that the definitive agreement or date for redemption, purchase or repayment specified in an irrevocable notice for such Limited Condition Transaction is terminated, expires or passes, as applicable, without consummation of such Limited Condition Transaction, any such ratio, test or basket shall be determined or tested giving Pro Forma Effect to such Limited Condition Transaction.

ARTICLE III

Security Forms

Section 3.1. Form Generally.

(1) The Notes shall be in substantially the form set forth in Section 3.2 hereof, with such appropriate insertions, omissions, substitutions and other variations as are required or permitted by the Base Indenture and this Fifth Supplemental Indenture, and may have such letters, numbers or other marks of identification and such legends or endorsements placed thereon as may be required to comply with applicable tax laws or the rules of any securities exchange or Depositary therefore or as may, consistent herewith, be determined by the Responsible Officer executing such Notes, as evidenced by the execution thereof. All Notes shall be in fully registered form.

(2) The Notes shall be printed, lithographed or engraved on steel engraved borders or may be produced in any other manner, all as determined by the Responsible Officer of the Company executing such Notes, as evidenced by the execution of such Notes.

(3) Upon their original issuance, the Notes sold pursuant to Rule 144A under the Securities Act shall be issued in the form of one or more Global Securities in definitive, fully registered form without interest coupons.

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Notes sold pursuant to Regulation S under the Securities Act initially shall be represented by one or more Global Securities in fully registered, global form without interest coupons (the “Regulation S Global Note”), which shall be registered in the name of the Depositary or the nominee of the Depositary for the accounts of designated agents holding on behalf of Euroclear or Clearstream.

The aggregate principal amount of the Regulation S Global Note may from time to time be increased or decreased by adjustments made on the records of the Trustee and the Depositary or its nominee, as the case may be, in connection with transfers of interest as hereinafter provided.

Each such Global Security shall be duly executed by the Company, authenticated and delivered by the Trustee and shall be registered in the name of DTC, as Depositary, or its nominee, and deposited with the Trustee, as custodian for DTC. Beneficial interests in the Global Securities will be shown on, and transfers will only be made through, the records maintained by DTC and its participants, including Clearstream and the Euroclear system.

Section 3.2. Form of Note.

[FORM OF FACE OF NOTE]

[THE FOLLOWING LEGENDS SHALL APPEAR ON THE FACE OF EACH GLOBAL SECURITY:

THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION. THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF, AGREES ON ITS OWN BEHALF AND ON BEHALF OF ANY INVESTOR ACCOUNT FOR WHICH IT HAS PURCHASED SECURITIES, TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE (THE “RESALE RESTRICTION TERMINATION DATE”) THAT IS [IN THE CASE OF RULE 144A NOTES: SIX MONTHS AFTER THE LATER OF THE ORIGINAL ISSUE DATE HEREOF, THE ORIGINAL ISSUE DATE OF THE ISSUANCE OF ANY ADDITIONAL NOTES AND THE LAST DATE ON WHICH THE ISSUER OR ANY AFFILIATE OF THE ISSUER WAS THE OWNER OF THIS SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY),] [IN THE CASE OF REGULATION S NOTES: 40 DAYS AFTER THE LATER OF THE ORIGINAL ISSUE DATE HEREOF, THE ORIGINAL ISSUE DATE OF THE ISSUANCE OF ANY ADDITIONAL NOTES AND THE DATE ON WHICH THIS SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY) WAS FIRST OFFERED TO PERSONS OTHER THAN

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DISTRIBUTORS (AS DEFINED IN RULE 902 OF REGULATION S) IN RELIANCE ON REGULATION S], ONLY (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE SECURITIES ACT (“RULE 144A”), TO A PERSON IT REASONABLY BELIEVES IS A “QUALIFIED INSTITUTIONAL BUYER” AS DEFINED IN RULE 144A THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT, (E) TO AN INSTITUTIONAL “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501(a)(1), (2), (3) OR (7) UNDER THE SECURITIES ACT THAT IS NOT A QUALIFIED INSTITUTIONAL BUYER AND THAT IS PURCHASING FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF ANOTHER INSTITUTIONAL ACCREDITED INVESTOR, IN EACH CASE IN A MINIMUM PRINCIPAL AMOUNT OF SECURITIES OR (F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE COMPANY’S AND THE TRUSTEE’S RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSES (D), (E) OR (F) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/ OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE RESALE RESTRICTION TERMINATION DATE. [IN THE CASE OF REGULATION S NOTES: BY ITS ACQUISITION HEREOF, THE HOLDER HEREOF REPRESENTS THAT IT IS NOT A U.S. PERSON NOR IS IT PURCHASING FOR THE ACCOUNT OF A U.S. PERSON AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH REGULATION S UNDER THE SECURITIES ACT.]

BY ITS ACQUISITION OF THIS SECURITY (INCLUDING ANY INTEREST HEREIN), THE HOLDER THEREOF WILL BE DEEMED TO HAVE REPRESENTED AND WARRANTED THAT EITHER (1) NO PORTION OF THE ASSETS USED BY SUCH HOLDER TO ACQUIRE OR HOLD THIS SECURITY, OR ANY INTEREST HEREIN, CONSTITUTES THE ASSETS OF AN EMPLOYEE BENEFIT PLAN THAT IS SUBJECT TO TITLE I OF THE U.S. EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”), OF A PLAN, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER ARRANGEMENT THAT IS SUBJECT TO SECTION 4975 OF THE U.S. INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”) OR PROVISIONS UNDER ANY OTHER U.S. OR NON-U.S. FEDERAL, STATE, LOCAL OR OTHER LAWS OR REGULATIONS THAT

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ARE SIMILAR TO SUCH PROVISIONS OF ERISA OR THE CODE (“SIMILAR LAWS”), OR OF AN ENTITY WHOSE UNDERLYING ASSETS ARE CONSIDERED TO INCLUDE “PLAN ASSETS” OF ANY SUCH PLAN, ACCOUNT OR ARRANGEMENT, OR (2) THE ACQUISITION AND HOLDING OF THIS SECURITY, OR ANY INTEREST HEREIN, WILL NOT CONSTITUTE A NON-EXEMPT PROHIBITED TRANSACTION UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A SIMILAR VIOLATION UNDER ANY APPLICABLE SIMILAR LAWS.

[THE FOLLOWING LEGEND SHALL APPEAR ON THE FACE OF EACH GLOBAL SECURITY:

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE REFERRED TO ON THE REVERSE HEREOF. TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO THE DEPOSITORY TRUST COMPANY (“DTC”) OR ITS NOMINEE OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE INDENTURE REFERRED TO ON THE REVERSE HEREOF.].

[THE FOLLOWING LEGEND SHALL APPEAR ON THE FACE OF EACH GLOBAL SECURITY FOR WHICH DTC IS TO BE THE DEPOSITARY:

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF DTC TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.]

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EnerSys

6.625% SENIOR NOTES DUE 2032

No. ____________                                                                                                                                Principal Amount (U.S.)$______________

CUSIP No. ______________

EnerSys, a Delaware corporation (herein called the “Company”, which term includes any successor Person under the Fifth Supplemental Indenture referred to on the reverse hereof), for value received, hereby promises to pay to Cede & Co., or registered assigns, the principal sum of _________________ United States Dollars (U.S.$____________) (which amount may from time to time be increased or decreased to such other principal amounts by adjustments made on the records of the Security Registrar as set forth in the Schedule attached hereto) on January 15, 2032 and to pay interest thereon, from January 11, 2024, or from the most recent Interest Payment Date to which interest has been paid or duly provided for to but excluding the next Interest Payment Date, which shall be January 15 and July 15 of each year, commencing July 15, 2024, at the per annum rate of 6.625%, or as such rate may be adjusted pursuant to the terms hereof, per annum, until the principal hereof is paid or made available for payment.

The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in the Fifth Supplemental Indenture, be paid to the Person in whose name this Note is registered at the close of business on the Regular Record Date for such interest, which shall be the January 1 or July 1 immediately prior to the relevant Interest Payment Date (whether or not a Business Day). Except as otherwise provided in the Fifth Supplemental Indenture, any such interest not so punctually paid or duly provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose name this Note is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice of which shall be given to Holders of Notes not less than 10 days prior to the Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which such Notes may be listed, all as more fully provided in the Indenture. Interest will be computed on the basis of a 360-day year comprised of twelve 30-day months.

Payment of principal of, and premium, if any, and interest on this Note and the Change of Control Payment in connection with a Change of Control Triggering Event will be made at the Corporate Trust Office, in such coin or currency of the United States of America as at the time of payment shall be legal tender for the payment of public and private debts. With respect to Global Securities, the Company will make such payments by wire transfer of immediately available funds to DTC, or its nominee, as registered owner of the Global Securities. With respect to certificated Notes, the Company will make such payments by wire transfer of immediately available funds to a United States Dollar account maintained in the contiguous United States to each Holder of an aggregate principal amount of Notes in excess of U.S. $5,000,000 that has furnished wire instructions in writing to the Trustee no later than 15 days prior to the relevant payment date. If a Holder of a certificated Note (i) does not furnish such wire instructions as provided in the preceding sentence or (ii) holds U.S. $5,000,000 or less aggregate principal amount of Notes, the Company will make such payments by mailing a check to such Holder’s registered address.

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Reference is hereby made to the further provisions of this Note set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place.

Unless the certificate of authentication hereon has been executed by the Trustee referred to on the reverse hereof by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose.

IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed.

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CERTIFICATE OF AUTHENTICATION

This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture.

Dated:

[FORM OF REVERSE OF NOTE]

1. Indenture. This Note is one of a duly authorized issue of securities of the Company designated as its “6.625% Senior Notes due 2032” (herein called the “Notes”), issued under a Fifth Supplemental Indenture, dated as of January 11, 2024 (the “Fifth Supplemental Indenture”), to an indenture, dated as of April 23, 2015 (as it may be amended or supplemented from time to time in accordance with the terms thereof, the “Base Indenture” and herein with the Fifth Supplemental Indenture, collectively, the “Indenture”), among the Company, the Guarantors and U.S. Bank Trust Company, National Association, as successor in interest to U.S. Bank National Association, as successor in interest to MUFG Union Bank, N.A., as Trustee (herein called the “Trustee,” which term includes any successor trustee under the Indenture), to which reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Guarantors, the Trustee and the Holders of the Notes and of the terms upon which the Notes are, and are to be, authenticated and delivered. The aggregate principal amount of Initial Notes Outstanding at any time may not exceed $300,000,000 in aggregate principal amount, except for, or in lieu of, other Notes of the series pursuant to Sections 304, 305, 306, 906 or 1107 of the Base Indenture and except for any Notes which, pursuant to Section 303 of the Base Indenture, are deemed never to have been authenticated and delivered. The Fifth Supplemental Indenture pursuant to which this Note is issued provides that Additional Notes may be issued thereunder. All terms used in this Note which are defined in the Indenture shall have the meanings assigned to them in the Indenture. In the event of a conflict or inconsistency between this Note and the Indenture, the provisions of the Indenture shall govern.

2. Optional Redemption.

Except as set forth below, the Notes are not redeemable until January 15, 2027.

(a) At any time prior to January 15, 2027, the Company may, at its option, redeem the Notes, in whole or in part, at a redemption price equal to 100% of the aggregate principal amount of the Notes, plus the Applicable Premium, plus accrued and unpaid interest on the Notes, if any, to, but excluding, the Redemption Date.

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(b) On and after January 15, 2027, the Company may redeem the Notes, in whole or in part, at the redemption prices (expressed as a percentage of principal amount of the Notes to be redeemed) set forth below, plus accrued and unpaid interest on the Notes, if any, to, but excluding, the applicable Redemption Date, if redeemed during the 12-month period beginning on January 15 of each of the years indicated below:

(c) At any time prior to January 15, 2027, the Company may on any one or more occasions redeem up to 40% of the original aggregate principal amount of the Notes (calculated after giving effect to any issuance of Additional Notes) with the net cash proceeds of one or more Equity Offerings, at a redemption price equal to 106.625% of the aggregate principal amount of the Notes, plus accrued and unpaid interest on the Notes, if any, to, but excluding, the applicable Redemption Date; provided that:

(1) at least 50% of the original aggregate principal amount of the Notes (calculated after giving effect to any issuance of Additional Notes) remains outstanding after each such redemption; and

(2) such redemption occurs within 180 days after the closing of such Equity Offering.

(d) The Trustee shall have no obligation to calculate or verify the calculation of the amount of the redemption price.

3. Change of Control Triggering Event. If a Change of Control Triggering Event occurs, unless the Company has exercised its option to redeem all of the Notes as described under Section 5.1 of the Fifth Supplemental Indenture (or otherwise satisfied and discharged such Notes), each Holder of Notes will have the right to require the Company to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of that Holder’s Notes at a repurchase price in cash equal to 101% of the aggregate principal amount of the Notes repurchased, plus accrued and unpaid interest on the Notes repurchased, if any, to, but excluding, the date of purchase, pursuant to the provisions of Section 6.2 of the Fifth Supplemental Indenture.

4. Global Security. If this Note is a Global Security, then, in the event of a deposit or withdrawal of an interest in this Note, including an exchange, transfer, redemption, repurchase or conversion of this Note in part only, the Trustee, as custodian of the Depositary, shall make an adjustment on its records to reflect such deposit or withdrawal in accordance with the Applicable Procedures.

5. Defaults and Remedies. If an Event of Default shall occur and be continuing, the principal of all the Notes may be declared due and payable in the manner and with the effect provided in the Indenture. Upon payment of the amount of principal so declared due and payable, all obligations of the Company in respect of the payment of the principal of and interest on the Notes shall terminate.

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No Holder of Notes shall have any right to institute any proceeding, judicial or otherwise, with respect to the Indenture, or for the appointment of a receiver, assignee, trustee, liquidator or sequestrator (or similar official) or for any other remedy hereunder (except actions for payment of overdue principal of, and premium, if any, or interest on such Notes in accordance with its terms), unless (i) such Holder has previously given written notice to the Trustee of a continuing Event of Default, specifying an Event of Default with respect to the Securities of such series; (ii) the Holders of not less than 25% in aggregate principal amount of the Outstanding Notes shall have made a written request to the Trustee to institute proceedings in respect of such Event of Default in its own name as Trustee under the Indenture; (iii) such Holder or Holders have offered to the Trustee indemnity reasonably satisfactory to it against the costs, expenses and liabilities to be incurred in compliance with such request; (iv) the Trustee has failed to institute any such proceeding for 60 days after its receipt of such notice, request and offer of indemnity; and (v) no direction inconsistent with such written request has been given to the Trustee during such 60-day period by the Holders of a majority in aggregate principal amount of the Outstanding Notes of such series, it being understood and intended that no one or more of such Holders shall have any right in any manner whatever by virtue of, or by availing of, any provision of the Indenture to affect, disturb or prejudice the rights of any other of such Holders, or to obtain or to seek to obtain priority or preference over any other of such Holders or to enforce any right under the Indenture, except in the manner provided in the Indenture and for the equal and ratable benefit of all of such Holders.

The foregoing shall not apply to any suit instituted by the Holder of this Note for the enforcement of any payment of principal of, and premium, if any, or interest hereon, on or after the respective due dates expressed herein.

6. Amendment, Supplement and Waiver. The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the Guarantors and the rights of the Holders of the Notes under the Indenture at any time by the Company, the Guarantors and the Trustee with the written consent of the Holders of at least a majority in aggregate principal amount of the Outstanding Notes. The Indenture also contains provisions permitting the Holders of specified percentages in aggregate principal amount of the Outstanding Notes, on behalf of the Holders of all the Notes, to waive compliance by the Company and the Guarantors with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Note shall be conclusive and binding upon such Holder and upon all future Holders of this Note and of any Note issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof whether or not notation of such consent or waiver is made upon this Note or such other Note. Certain modifications or amendments to the Indenture require the consent of the Holder of each Outstanding Note affected.

No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair (without the consent of the Holder hereof) the obligation of the Company, which is absolute and unconditional, to pay the principal of, premium, if any, and interest on this Note at the times, places and rate, and in the coin or currency, herein prescribed.

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7. Registration and Transfer. As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Note is registerable on the Security Register. Upon surrender for registration of transfer of this Note at the office or agency of the Company in a Place of Payment, the Company shall execute, and the Trustee shall authenticate and deliver, in the name of the designated transferee or transferees, one or more new Notes of any authorized denominations and of like tenor and principal amount. As provided in the Indenture and subject to certain limitations therein set forth, at the option of the Holder, this Note may be exchanged for one or more new Notes of any authorized denominations and of like tenor and principal amount, upon surrender of this Note at such office or agency. Upon such surrender by the Holder, the Company shall execute, and the Trustee shall authenticate and deliver, in the name of the designated transferee or transferees, one or more new Notes of any authorized denominations and of like tenor and principal amount. Every Note presented or surrendered for registration of transfer or for exchange shall be duly endorsed (if so required by the Company or the Trustee), or be accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed, by the Holder thereof or such Holder’s attorney duly authorized in writing. No service charge shall be made for any such registration of transfer or exchange, but the Company or the Trustee may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection therewith.

Prior to due presentment of this Note for registration of transfer, the Company, the Guarantors, the Trustee and any agent of the Company, a Guarantor or the Trustee may treat the Person in whose name such Note is registered as the owner thereof for all purposes, whether or not such Note be overdue, and neither the Company, the Guarantors, the Trustee nor any agent of the Company, a Guarantor or the Trustee shall be affected by notice to the contrary.

8. Guarantee. As expressly set forth in the Base Indenture, payment of this Note is jointly and severally and fully and unconditionally guaranteed by the Guarantors that have become and continue to be Guarantors pursuant to the Indenture. Guarantors may be released from their obligations under the Indenture and their Guarantees under the circumstances specified in the Base Indenture.

9. Governing Law. THE INDENTURE, THIS SECURITY AND THE GUARANTEES SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW.

ABBREVIATIONS

The following abbreviations, when used in the inscription of the face of this Note, shall be construed as though they were written out in full according to applicable laws or regulations:

TEN COM (= tenant in common)

TEN ENT (= tenants by the entireties (Cust))

JT TEN (= joint tenants with right of survivorship and not as tenants in common)

UNIF GIFT MIN ACT (= under Uniform Gifts to Minors Act)

Additional abbreviations may also be used though not in the above list.

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ASSIGNMENT FORM

To assign this Note, fill in the form below:

(I) or (we) assign and transfer this

Note to:                                                                                           _____________________

(Insert assignee’s legal name)

(Insert assignee’s soc. sec. or tax I.D. no.)

(Print or type assignee’s name, address and zip code)

and irrevocably appoint__________________, as agent, to transfer this Note on the books of the Company. The agent may substitute another to act for him.

In connection with the assignment of the Notes evidenced by this certificate occurring prior to the date that is one year or six months, as the case may be (as specified in Rule 144(d) under the Securities Act), after the later of the date of original issuance of such Notes, the date of original issuance of any Additional Notes and the last date, if any, on which such Notes were owned by the Company or any affiliate of the Company, the undersigned confirms that such Notes are being:

CHECK ONE BOX BELOW:

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Unless one of the boxes is checked, the Trustee will refuse to register any of the Notes evidenced by this certificate in the name of any Person other than the registered holder thereof; provided, however, that if box (5), (6) or (7) is checked, the Company may require, prior to registering any such transfer of the Notes, in its sole discretion, such legal opinions, certifications and other information as the Company may reasonably request to confirm that such transfer is being made pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act, such as the exemption provided by Rule 144A promulgated under the Securities Act.

Signature The signature(s) should be guaranteed by an eligible guarantor institution (banks, stockbrokers, savings and loan associations and credit unions with membership in an approved signature guarantee medallion program), pursuant to Rule 17Ad-15 of the Securities Exchange Act.

TO BE COMPLETED BY PURCHASER IF (1) OR (3) ABOVE IS CHECKED.

The undersigned represents and warrants that it is purchasing this Note for its own account or an account with respect to which it exercises sole investment discretion and that it and any such account is a “qualified institutional buyer” within the meaning of Rule 144A under the Securities Act, and is aware that the sale to it is being made in reliance on Rule 144A promulgated under the Securities Act and acknowledges that it has received such information regarding the Company as the undersigned has requested pursuant to Rule 144A or has determined not to request such information and that it is aware that the transferor is relying upon the undersigned’s foregoing representations in order to claim the exemption from registration provided by Rule 144A.

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[SCHEDULE OF INCREASES AND DECREASES IN NOTE]

EnerSys

6.625% Senior Notes due 2032

The initial aggregate principal amount of this Note is $____________. The following increases or decreases in this Note have been made:

(1) Insert for Global Securities only

Section 3.3. Transfer and Exchange of Global Securities.

(1) The transfer and exchange of Global Securities or beneficial interests therein shall be effected through the Depositary, in accordance with the Indenture (including applicable restrictions on transfer set forth in the Indenture and in the Global Security) and the procedures of the Depositary therefor. A transferor of a beneficial interest in a Global Security to another Global Security shall deliver to the Security Registrar a duly completed Assignment Form in the form attached to the Global Security, any applicable certifications or opinions required by the Assignment Form and a written order given in accordance with the Applicable Procedures containing information regarding the participant account of the Depositary to be credited with a beneficial interest in the Global Security. The Security Registrar shall, in accordance with such instructions, instruct the Depositary to credit to the account of the Person specified in such instructions a beneficial interest in the Global Security and to debit the account of the Person making the transfer the beneficial interest in the Global Security being transferred.

(2) If the proposed transfer is a transfer of a beneficial interest in one Global Security to a beneficial interest in another Global Security, the Security Registrar shall reflect on its books and records the date and an increase in the principal amount of the Global Security to which such interest is being transferred in an amount equal to the principal amount of the interest to be so transferred, and the Security Registrar shall reflect on its books and records the date and a corresponding decrease in the principal amount of the Global Security from which such interest is being transferred. Prior to the expiration of the Restricted Period, transfers of beneficial interests in the Regulation S Global Note may not be made to a U.S. Person or for the account or benefit of a U.S. Person (other than an initial purchaser of the Notes).

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(3) If the Company determines (upon the advice of counsel and such other certifications and evidence as the Company may reasonably require) that a Note is eligible for resale after the date that is one year (in the case of a Note sold pursuant to Rule 144A under the Securities Act) or 40 days (in the case of a Note sold pursuant to Regulation S under the Securities Act) after the later of the Issue Date, the date of original issuance of any Additional Notes and the last date the Company or any of its affiliates was the owner of such Note or any predecessor of such Note pursuant to Rule 144 under the Securities Act (or a successor provision) without the need for current public information and that the applicable legend in either the first paragraph of Section 3.2 hereof (a “Restricted Legend”) is no longer necessary or appropriate in order to ensure that subsequent transfers of the Note (or a beneficial interest therein) are effected in compliance with the Securities Act, the Company may instruct the Trustee to cancel the Note and issue to the Holder thereof (or to its transferee) a new Note in any authorized denominations of like tenor and aggregate principal amount, registered in the name of the Holder thereof (or its transferee), that does not bear the Restricted Legend, and the Trustee, upon (i) receipt of an Authentication Order and the documents required by Section 102 of the Base Indenture and (ii) in the case of Global Securities, compliance by the Company with DTC’s applicable procedures relating to the exchange and/or issuance of such new Note, will comply with such instruction.

ARTICLE IV

Remedies

Section 4.1. Events of Default.

An “Event of Default” means, wherever used herein with respect to the Notes, any one of the following events (whatever the reason for such Event of Default and whether it shall be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body):

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and the order or decree remains unstayed and in effect for 90 days;

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The Company’s failure to pay the Change of Control Payment when due in connection with a Change of Control Triggering Event shall also be an Event of Default.

Section 4.2. Waiver of Past Defaults.

Section 512 of the Base Indenture shall not apply to the Notes, and, with respect to the Notes, any reference to Section 512 in the Base Indenture shall instead be deemed to refer to this Section 4.2.

Subject to Section 502 of the Base Indenture, the Holders of not less than a majority in aggregate principal amount of the Outstanding Notes may on behalf of the Holders of all the Notes, upon notice to the Company and the Trustee, waive any past Default hereunder with respect to the Notes and its consequences, except a default:

(1) in the payment of the principal of or premium, if any, or interest on any Note or the Change of Control Payment in connection with a Change of Control Triggering Event; or

(2) in respect of a covenant or provision hereof or of the Base Indenture which under Article VII hereof or under Article IX of the Base Indenture cannot be modified or amended without the consent of the Holder of each Outstanding Note affected.

Upon any such waiver, such Default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured, for every purpose of this Fifth Supplemental Indenture, but no such waiver shall extend to any subsequent or other Default or impair any right consequent thereon.

ARTICLE V

Redemption of Securities

Section 5.1. Optional Redemption.

Except as set forth below, the Notes are not redeemable until January 15, 2027.

(a) At any time prior to January 15, 2027, the Company may, at its option, redeem the Notes, in whole or in part, at a redemption price equal to 100% of the aggregate principal amount of the Notes, plus the Applicable Premium, plus accrued and unpaid interest, if any, to, but excluding, the Redemption Date.

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(b) On and after January 15, 2027, the Company may redeem the Notes, in whole or in part, at the redemption prices (expressed as a percentage of principal amount of the Notes to be redeemed) set forth below, plus accrued and unpaid interest on the Notes, if any, to, but excluding, the applicable Redemption Date, if redeemed during the 12-month period beginning on January 15 of each of the years indicated below:

(c) At any time prior to January 15, 2027, the Company may on any one or more occasions redeem up to 40% of the original aggregate principal amount of the Notes (calculated after giving effect to any issuance of Additional Notes) with the net cash proceeds of one or more Equity Offerings, at a redemption price equal to 106.625% of the aggregate principal amount of the Notes, plus accrued and unpaid interest on the Notes, if any, to, but excluding, the applicable Redemption Date; provided that:

(3) at least 50% of the original aggregate principal amount of the Notes (calculated after giving effect to any issuance of Additional Notes) remains outstanding after each such redemption; and

(4) such redemption occurs within 180 days after the closing of such Equity Offering.

(d) If the Redemption Date is on or after a Regular Record Date but on or prior to the related Interest Payment Date, then any accrued and unpaid interest in respect of Notes subject to redemption will be paid on the Redemption Date to the Person in whose name the Note is registered at the close of business, on such Regular Record Date, and no additional interest will be payable to holders whose Notes will be subject to redemption by the Company.

(e) Unless the Company defaults in the payment of the Redemption Price, interest will cease to accrue on the Notes or portions thereof called for redemption on the applicable Redemption Date.

(f) The Trustee shall have no obligation to calculate or verify the calculation of the amount of the redemption price.

(g) If holders of not less than 90% in aggregate principal amount of the Outstanding Notes validly tender and do not withdraw such Notes in connection with any tender offer or other offer to purchase the Notes (including pursuant to a Change of Control Offer) and the Company, or any other Person making such offer in lieu of the Company, purchases all of the Notes validly tendered and not validly withdrawn by such holders, the Company or such other Person will have the right, upon not less than 10 nor more than 60 days’ prior notice (except that such notice may be delivered or mailed more than 60 days prior to the Redemption Date or purchase date if the notice is subject to one or more conditions precedent as described in Section 5.1(h) hereof, given not more than 30 days following such purchase date, to redeem or purchase all Notes that remain outstanding following such purchase at a redemption price in cash equal to the applicable price paid to holders in such purchase (excluding any early tender or incentive fee), plus accrued and unpaid interest on the Notes, if any, to, but excluding, the Redemption Date (subject to the right of holders of record on the relevant record date to receive interest due on an Interest Payment Date that is on or prior to the Redemption Date).

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(h) Notice of any redemption or purchase of the Notes (including upon an Equity Offering or debt incurrence or in connection with a transaction (or series of related transactions) that constitute a Change of Control) may, at the Company’s discretion, be given prior to the completion of such transaction and may be subject to one or more conditions precedent, including, but not limited to, completion of the related Equity Offering, debt incurrence or Change of Control. In addition, if such redemption or purchase is subject to satisfaction of one or more conditions precedent, such notice shall state that, in the Company’s discretion, the redemption or purchase date may be delayed until such time as any or all such conditions shall be satisfied, or such redemption or purchase may not occur and such notice may be rescinded in the event that any or all such conditions shall not have been satisfied by the redemption or purchase date, or by the redemption or purchase date so delayed. In addition, the Company may provide in such notice that payment of the redemption or purchase price and performance of the Company’s obligations with respect to such redemption or purchase may be performed by another Person.

(i) If less than all of the Notes are to be redeemed at any time, the Trustee will select the Notes for redemption on a pro rata basis, by lot or by such other method as the Trustee will deem to be fair and appropriate (subject to DTC’s procedures, as applicable), in each case, subject to adjustments so that no Note in an unauthorized denomination is redeemed in part and further; provided, however, that no Note of $2,000 in aggregate principal amount shall be redeemed in part.

Section 5.2. Base Indenture.

Any redemption of the Notes under Section 5.1 hereof shall be in accordance with Article XI of the Base Indenture (Redemption of Securities).

ARTICLE VI

Particular Covenants

Section 6.1. Limitations on Liens.

The Company shall not, and shall not permit any Subsidiary to, directly or indirectly, incur, assume or guarantee any Indebtedness secured by a Lien on any of the Company’s properties or assets or on any of the Company’s Subsidiaries’ capital stock, properties or assets, unless the Company secures the Notes equally and ratably with the Indebtedness secured by such Lien for so long as such Indebtedness is so secured. The restrictions do not apply to Indebtedness that is secured by:

(1) Liens securing Indebtedness in an aggregate principal amount not to exceed the greater of (i) $1.5 billion and (ii) the maximum principal amount of Indebtedness that could be incurred such that, after giving effect to such incurrence, the Secured Leverage Ratio would be no greater than 3.5 to 1.0, in each case outstanding at any one time, and refinancings thereof, whether or not the Company satisfies the Secured Leverage Ratio upon such refinancing;

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(2) Liens existing on the date the Notes are issued and any modifications, replacements, refinancings, restructurings, renewals or extensions thereof (other than Liens securing the Credit Agreement or any extension, renewal, replacement or refunding thereof); provided that any such Lien does not extend to or cover any other assets or property (other than the proceeds or products thereof and after-acquired property subjected to a Lien pursuant to terms of the original Lien and the amount of new Indebtedness does not exceed the amount of Indebtedness being replaced, refinanced, restructured, extended or renewed (plus fees and expenses, including any premium and defeasance costs));

(3) Liens existing on property (including capital stock) at the time of its acquisition or existing on the property of any Person at the time such Person becomes a Subsidiary, in each case after the date hereof and any modifications, replacements, refinancings, restructurings, renewals or extensions thereof; provided that (x) such Lien was not created in contemplation of such acquisition or such Person becoming a Subsidiary and (y) such Lien does not extend to or cover any other assets or property (other than the proceeds or products thereof and after-acquired property subjected to a Lien pursuant to terms existing at the time of such acquisition, it being understood that such requirement shall not be permitted to apply to any property to which such requirement would not have applied but for such acquisition);

(4) Liens in favor of the Company or any Guarantor;

(5) Liens on real property acquired after the date on which the Notes are first issued which secure Indebtedness incurred to acquire such real property or improve such real property, so long as (x) such Indebtedness is incurred on the date of acquisition of such real property or within 180 days of the acquisition of such real property, or the commencement of such improvements; (y) such Liens secure Indebtedness in an amount no greater than the purchase price or improvement price, as the case may be, of such real property so acquired; and (z) such Liens do not extend to or cover any property of the Company or any Guarantor other than the real property so acquired and improvements thereon;

(6) Liens for taxes, assessments or governmental charges or claims which are (i) not overdue for a period of more than 60 days or, if more than 60 days overdue which are being contested in good faith or (ii) not yet subject to penalties for non-payment;

(7) statutory and common law Liens of landlords, carriers, warehousemen, mechanics, materialmen, repairmen, construction contractors or other like Liens arising in the ordinary course of business;

(8) Liens in connection with workers’ compensation, unemployment insurance and other social security legislation;

(9) Liens securing insurance premiums or reimbursement or indemnity obligations under insurance policies, in each case payable to insurance carriers that provide insurance to the Company or any of its Subsidiaries or obligations in respect of letters of credit or bank guarantees that have been posted by the Company or the Guarantors or any Subsidiaries to support the payments of the items set forth in this clause (9);

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(10) Liens arising to secure (i) the performance of bids, trade contracts, governmental contracts and leases (other than Indebtedness for borrowed money), statutory obligations, surety, stay, customs and appeal bonds, performance bonds, performance and completion guarantees and other obligations of a like nature (including those to secure health, safety and environmental obligations) and (ii) obligations in respect of letters of credit or bank guarantees that have been posted to support payment of the items set forth in sub-clause (i) of this clause (10);

(11) easements, rights-of-way, land use regulations, covenants, conditions, restrictions (including zoning restrictions), encroachments, protrusions and other similar encumbrances and minor title defects or matters that would be disclosed in an accurate survey affecting real property which, in the aggregate, do not in any case materially and adversely interfere with the ordinary conduct of the business of the Company and its Subsidiaries (taken as a whole);

(12) Liens on property or assets of any Subsidiary that is not the Company or a Guarantor securing Indebtedness of such Subsidiary;

(13) Liens securing Hedging Obligations for non-speculative purposes; and

(14) Liens securing judgments for the payment of money not constituting an Event of Default.

In the event that a Lien meets the criteria of more than one of the types of Liens (at the time of incurrence or at a later date), the Company in its sole discretion may divide, classify or from time to time reclassify all or any portion of such Lien in any manner that complies with this definition and such Lien shall be treated as having been made pursuant only to the clause or clauses of above to which such Lien has been classified or reclassified; provided, however, that Liens securing Indebtedness under the Credit Agreement outstanding on the date the Notes are first issued or any extension, renewal, replacement or refunding thereof will be deemed to be incurred on such date in reliance on the exception described in clause (1) above and the Company shall not be permitted to reclassify all or any portion of a Lien incurred pursuant to clause (1) above on the Issue Date.

Section 6.2. Repurchase at the Option of Holders of Notes.

(1) If a Change of Control Triggering Event occurs, unless the Company has exercised its right to redeem all of the Notes as described under Section 5.1 hereof (or otherwise satisfied and discharged such Notes), Holders of the Notes will have the right to require the Company to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of their Notes pursuant to the offer described below (the “Change of Control Offer”) on the terms set forth herein. In the Change of Control Offer, the Company shall offer payment in cash equal to 101% of the aggregate principal amount of the Notes repurchased, plus accrued and unpaid interest on the Notes repurchased, if any, to, but excluding, the date of purchase (the “Change of Control Payment”).

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(2) Within 30 days following any Change of Control Triggering Event, or, at the Company’s option, prior to the date of consummation of any Change of Control, but after public announcement of the pending Change of Control (and whether or not there has been a change in rating), the Company shall send a notice to Holders of the Notes, with a copy to the Trustee, describing the transaction or transactions that constitute the Change of Control and offering to repurchase the Notes on the date specified in the notice, which date will be no earlier than 15 days and no later than 60 days from the date such notice is sent (the “Change of Control Payment Date”), pursuant to the procedures required by Article XI of the Base Indenture and described in such notice. The repurchase obligation with respect to any notice sent prior to the consummation of the Change of Control shall be conditioned on the Change of Control Triggering Event occurring on or prior to the payment date specified in the notice.

(3) The Company shall comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control Triggering Event. To the extent that the provisions of any securities laws or regulations conflict with the Change of Control Triggering Event provisions of the Notes set forth in this Fifth Supplemental Indenture, the Company shall comply with the applicable securities laws and regulations and shall not be deemed to have breached its obligations under this Indenture by virtue of such conflicts.

(4) On the Change of Control Payment Date, the Company shall, to the extent lawful:

(A) accept for payment all Notes or portions of the Notes properly tendered pursuant to the Change of Control Offer;

(B) deposit with the Paying Agent an amount equal to the Change of Control Payment in respect of all Notes or portions of the Notes accepted for payment; and

(C) deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officers’ Certificate stating the aggregate principal amount of Notes or portions of Notes being purchased.

(5) The Paying Agent shall promptly send to each Holder of the Notes accepted for payment the purchase price for the Notes, and the Trustee, upon receipt of an Authentication Order, shall promptly authenticate and send to each Holder a new Note equal in principal amount to any unpurchased portion of any Notes surrendered; provided that each new Note will be in a principal amount of $2,000 or an integral multiple of $1,000 in excess thereof.

(6) The Company shall not be required to make an offer to repurchase the Notes upon a Change of Control Triggering Event if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for an offer made by the Company and such third party purchases all Notes properly tendered and not withdrawn under its offer.

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Section 6.3. Limitations on Sale and Leaseback Transactions.

The Company shall not and shall not permit any Subsidiary to enter into any arrangement with any person to lease a Principal Property (except for any arrangements that exist on the date the Notes are issued or that exist at the time any person that owns a Principal Property becomes a Subsidiary) which has been or is to be sold by the Company or the Subsidiary to such person unless:

(1) the sale and leaseback arrangement involves a lease for a term of not more than three years;

(2) the sale and leaseback arrangement is entered into between the Company and any Subsidiary or between the Company’s Subsidiaries;

(3) the Company or the Subsidiary would be entitled to incur Indebtedness secured by a Lien on the Principal Property, in an amount at least equal to any Attributable Indebtedness, pursuant to Section 6.1 hereof without having to secure equally and ratably the Notes; or

(4) the proceeds of the sale and leaseback arrangement are at least equal to the fair market value (as determined by the Company’s Board of Directors in good faith) of the Principal Property and the Company applies within 180 days after the sale an amount equal to the greater of the net proceeds of the sale or the Attributable Indebtedness associated with the Principal Property, if any, to (i) the retirement of long-term debt for borrowed money that is not subordinated to the Notes and that is not debt owed to the Company or a Subsidiary or (ii) the purchase or development of other property.

Section 6.4. SEC Reports.

(1) Notwithstanding that the Company may not be subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, the Company shall (i) file with the SEC or (ii) make publicly available to the registered Holders of the Notes, within 15 days after the time period specified in the SEC’s rules and regulations:

provided that (A) at any time that the Company is not subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, none of such reports will be required to (i) comply with Section 302, 404 and 906 of the Sarbanes-Oxley Act of 2002, or related Items 307 and 308 of Regulation S-K promulgated by the SEC, or Item 10(e) of Regulation S-K (with respect to any non-GAAP financial measures contained therein), (ii) contain the information required by Items 201, 402, 403, 405, 406, 407, 701 or 703 of Regulation S-K, (iii) contain the separate financial information contemplated by Rules 3-10 or 3-16 of Regulation S-X promulgated by the SEC,

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(iv) provide financial statements in interactive data format using the eXtensible Business Reporting Language and (v) include any exhibits or certifications required by Form 10-K, Form 10-Q, Form 8-K (or any successor forms) or related rules under Regulation S-K and (B) the Company shall not be so obligated to file such reports with the SEC if the SEC does not permit such filing, in which event the Company will make available such information to prospective purchasers of Notes, in addition to providing such information to the Trustee and the Holders of Notes, in each case within 15 days after the time the Company would be required to file such information with the SEC, if it were subject to Section 13 or 15(d) of the Exchange Act.

(2) In addition, the Company has agreed that it shall make available to the Holders and to prospective investors, upon the request of such Holders, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act during any period in which the Company is not subject to Section 13 or 15(d) of the Exchange Act. For purposes of this Section 6.4, the Company will be deemed to have furnished the reports to the Holders of the Notes as required by this Section 6.4 if the Company has filed such reports with the SEC via the EDGAR filing system or such reports are publicly available.

(3) To the extent any information is not provided within the time periods specified above and such information is subsequently provided, the Company will be deemed to have satisfied its obligations with respect thereto at such time and any Default or Event of Default with respect thereto shall be deemed to have been cured; provided that such cure shall not otherwise affect the rights of the Holders under Section 4.1 hereof if Holders of at least 25% in principal amount of the then total Outstanding Notes have declared the principal, premium, if any, interest and any other monetary obligations on all the then-Outstanding Notes to be due and payable immediately and such declaration shall not have been rescinded or cancelled prior to such cure.

ARTICLE VII

Supplemental Indentures

Section 7.1. Supplemental Indentures without Consent of Holders of Notes.

Section 901 of the Base Indenture shall not apply to the Notes, and, with respect to the Notes, any reference to Section 901 in the Base Indenture shall instead be deemed to refer to this Section 7.1.

Without the consent of any Holders, the Company and the Trustee, at any time and from time to time, may enter into one or more indentures supplemental hereto, for any of the following purposes:

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Section 7.2. Supplemental Indentures with Consent of Holders of Notes.

Section 902 of the Base Indenture shall not apply to the Notes, and, with respect to the Notes, any reference to Section 902 in the Base Indenture shall instead be deemed to refer to this Section 7.2.

With the consent of the Holders of not less than a majority in aggregate principal amount of the Outstanding Notes affected by such supplemental indenture (including consents obtained in connection with a tender offer or exchange for the Notes), by Act of said Holders delivered to the Company, the Guarantors and the Trustee, the Company, the Guarantors and the Trustee may enter into an indenture or indentures supplemental hereto for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of the Indenture or of modifying in any manner the rights of the Holders of such Notes under the Indenture; provided, however, no such supplemental indenture shall, without the consent of the Holder of each Outstanding Note affected thereby:

(1) extend the maturity of any payment of principal of or any installment of interest on any Notes;

(2) reduce the principal amount of any Note, or the interest, including additional interest, thereon, or any premium payable on any Note upon redemption thereof;

(3) change the Company’s obligation to pay additional amounts;

(4) change any Place of Payment where, or the currency in which, any Note or any premium or interest is denominated as payable;

(5) change the ranking of the Notes;

(6) amend the right to sue for the enforcement of any payment on or with respect to any Note;

(7) modify the Guarantees in any manner adverse to the Holders of the Notes, except as permitted by this Fifth Supplemental Indenture; or

(8) reduce the percentage in principal amount of Outstanding Notes required to consent to any supplemental indenture, any waiver of compliance with provisions of this Fifth Supplemental Indenture or specific defaults and their consequences provided for in this Fifth Supplemental Indenture, or otherwise modify the sections in this Fifth Supplemental Indenture relating to these consents.

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For the avoidance of doubt, the Trustee shall not be responsible for making any determination as to whether or not the consent of Holders, or what percentage of such Holders, is required in connection with any amendment, supplement or waiver of any provision of the Base Indenture, this Fifth Supplemental Indenture, the Notes or the Guarantees.

It shall not be necessary for any Act of Holders under this Section 7.2 to approve the particular form of any proposed supplemental indenture, but it shall be sufficient if such Act shall approve the substance thereof.

Notwithstanding the foregoing, the provisions set forth under Section 6.2 hereof may be waived or modified with the consent of the Holders of a majority in aggregate principal amount of the Notes.

ARTICLE VIII

Miscellaneous

Section 8.1. Execution as Supplemental Indenture.

This Fifth Supplemental Indenture is executed and shall be construed as an indenture supplemental to the Base Indenture and this Fifth Supplemental Indenture and the Base Indenture shall henceforth be read together, and any conflict between the Base Indenture and this Fifth Supplemental Indenture shall be resolved as provided in Section 1.4 hereof.

Section 8.2. Not Responsible for Recitals or Issuance of Notes.

The recitals contained herein and in the Notes, except the Trustee’s certificates of authentication, shall be taken as the statements of the Company and the Guarantors, as the case may be, and the Trustee assumes no responsibility for their correctness. The Trustee makes no representations as to the validity or sufficiency of this Fifth Supplemental Indenture or of the Securities or the Guarantees. The Trustee shall not be accountable for the use or application by the Company of the Notes or the proceeds thereof.

Section 8.3. Separability Clause.

In case any provision in this Fifth Supplemental Indenture or in the Notes shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

Section 8.4. Successors and Assigns.

All covenants and agreements in this Fifth Supplemental Indenture by the Company and the Guarantors shall bind their respective successors and assigns, whether so expressed or not. All agreements of the Trustee in this Fifth Supplemental Indenture shall bind its successors and assigns, whether so expressed or not.

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Section 8.5. Execution and Counterparts. This Fifth Supplemental Indenture may be executed in any number of counterparts, each of which so executed shall be deemed to be an original, and all such counterparts shall together constitute but one and the same instrument. The words “execution,” “signed,” “signature,” “delivery,” and words of like import in or relating to this Agreement or any document to be signed in connection with this Agreement shall be deemed to include electronic signatures, deliveries or the keeping of records in electronic form, each of which shall be of the same legal effect, validity or enforceability as a manually executed signature, physical delivery thereof or the use of a paper-based recordkeeping system, as the case may be, and the parties hereto consent to conduct the transactions contemplated hereunder by electronic means. The Trustee shall have the right to accept and act upon any notice, instruction, or other communication, including any funds transfer instruction, (each, a “Notice”) received pursuant to this Supplemental Indenture by electronic transmission (including by e-mail, facsimile transmission, web portal or other electronic methods) and shall not have any duty to confirm that the person sending such Notice is, in fact, a person authorized to do so. Electronic signatures believed by Trustee to comply with the ESIGN Act of 2000 or other applicable law (including electronic images of handwritten signatures and digital signatures provided by DocuSign, Orbit, Adobe Sign or any other digital signature provider identified by any other party hereto and acceptable to Trustee) shall be deemed original signatures for all purposes. Each other party to this Supplemental Indenture assumes all risks arising out of the use of electronic signatures and electronic methods to send Notices to Trustee, including without limitation the risk of Trustee acting on an unauthorized Notice and the risk of interception or misuse by third parties.

Section 8.6. Governing Law.

This Fifth Supplemental Indenture shall be governed by, and construed in accordance with, the law of the State of New York, without regard to principles of conflicts of law.

Section 8.7. Trustee Matters.

The Trustee accepts the Base Indenture, as supplemented hereby, and agrees to perform the same upon the terms and conditions set forth therein, as supplemented hereby. The Trustee shall be entitled to the benefit of every provision of the Base Indenture relating to the conduct or affecting the liability or affording protection to the Trustee, including, without limitation, its right to be indemnified, whether or not elsewhere herein so provided.

[Signature page to follow]

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IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed and attested, all as of the day and year first above written.

[Signature Page to Fifth Supplemental Indenture]

[Signature Page to Fifth Supplemental Indenture]

[Signature Page to Fifth Supplemental Indenture]

Exhibit 99.1

ENERSYS ANNOUNCES CLOSING OF $300 MILLION AGGREGATE PRINCIPAL AMOUNT OF SENIOR NOTES

READING, Pa.,—January 11, 2024—EnerSys (NYSE: ENS) (“EnerSys” or the “Company”) announced today the closing of $300 million aggregate principal amount of its 6.625% senior notes due 2032 (the “Notes”). The Notes were issued at an issue price of 100% of the principal amount. The Notes are unsecured, unsubordinated obligations of the Company and are guaranteed by each of the Company’s subsidiaries that guarantee the Company’s senior secured credit facilities and 4.375% senior notes due 2027.

The Company intends to use the net proceeds from the offering to repay and retire a portion of its outstanding term loans. The Company intends to use the remaining net proceeds for general corporate purposes, including to repay a portion of the outstanding borrowings under its revolving credit facility (without a reduction in commitment). The exact allocation of such proceeds and the timing thereof is at the discretion of the Company’s management.

The Notes and the related guarantees have not been and will not be registered under the Securities Act of 1933, as amended (the “Securities Act”), or any applicable state or foreign securities laws and may not be offered or sold in the United States absent registration or an applicable exemption from registration under the Securities Act and applicable state securities laws. The Notes were offered only to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act and outside the United States to non-U.S. persons pursuant to Regulation S under the Securities Act.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.

About EnerSys

EnerSys is the global leader in stored energy solutions for industrial applications and designs, manufactures, and distributes energy systems solutions and motive power batteries, specialty batteries, battery chargers, power equipment, battery accessories and outdoor equipment enclosure solutions to customers worldwide. The company goes to market through four lines of business: Energy Systems, Motive Power, Specialty and New Ventures. Energy Systems, which combine power conversion, power distribution, energy storage, and enclosures, are used in the telecommunication, broadband and utility industries, uninterruptible power supplies, and numerous applications requiring stored energy solutions. Motive power batteries and chargers are utilized in electric forklift trucks and other industrial electric powered vehicles. Specialty batteries are used in aerospace and defense applications, large over-the-road trucks, premium automotive, medical and security systems applications. New Ventures provides energy storage and management systems for various applications including demand charge reduction, utility back-up power, and dynamic fast charging for electric vehicles. EnerSys also provides aftermarket and customer support services to its customers in over 100 countries through its sales and manufacturing locations around the world.

Caution Concerning Forward-Looking Statements

This press release contains forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements that are not historical facts, including statements identified by words such as “believe,” “plan,” “seek,” “expect,” “intend,” “estimate,” “anticipate,” “will,” and similar expressions. All statements addressing operating performance, events or developments that EnerSys expects or anticipates will occur in the future, including statements relating to the use of proceeds from the offering of the Notes, are forward-looking statements. The forward-looking statements are based on management’s current views and assumptions regarding future events and operating performance, and are inherently subject to risks and uncertainties. The statements in this press release are made as of the date of this press release. EnerSys does not undertake any obligation to update or revise these statements to reflect events or circumstances occurring after the date of this press release.

The foregoing factors, among others, could cause actual results to differ materially from those described in these forward-looking statements. For a list of other factors which could affect EnerSys’ results, including earnings estimates, see EnerSys’ filings with the Securities and Exchange Commission, including “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and “Forward-Looking Statements,” set forth in EnerSys’ Annual Report on Form 10-K for the fiscal year ended March 31, 2023. No undue reliance should be placed on any forward-looking statements.

CONTACT

Lisa Hartman

Vice President, Investor Relations and Corporate Communications

EnerSys

610-236-4040

E-mail: investorrelations@enersys.com