SEC FORM 3 SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
 
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1. Name and Address of Reporting Person*
Shaffer David M

(Last) (First) (Middle)
C/O ENERSYS
2366 BERNVILLE ROAD

(Street)
READING PA 19605

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
05/23/2013
3. Issuer Name and Ticker or Trading Symbol
EnerSys [ ENS ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
President, EMEA
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock 48,489(1)(2)(3) D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. This amount includes 1,461 unvested Restricted Stock Units ("RSUs") granted to the reporting person on May 17, 2010. These RSUs vest on May 17, 2014.
2. This amount includes 15,183 unvested Market Share Units ("MSUs") granted to the reporting person on May 16, 2011. These MSUs vest on May 16, 2014.
3. This amount includes 15,196 unvested MSUs granted to the reporting person on May 14, 2012. These MSUs vest on May 14, 2015.
Karen J. Yodis, by Power of Attorney 05/24/2013
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
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LIMITED POWER OF ATTORNEY
       Know all by these presents that the undersigned hereby constitutes and appoints each of Karen
J. Yodis, Barbara Weaver, and Richard W. Zuidema, signing individually, as the undersigned's true and
lawful attorney-in-fact to:
       1.	execute for and on behalf of the undersigned, in the undersigned's capacity as an
Officer of EnerSys (the "Company"), Forms 3, 4, and 5 in accordance with Section 16(a) of the
Securities Exchange Act of 1934 and the rules thereunder;
       2.	do and perform any and all acts for and on behalf of the undersigned which may be
necessary or desirable to obtain filing codes, complete and execute any such Form 3, 4, or 5 and timely
file such form with the United States Securities and Exchange Commission and any stock exchange or
similar authority; and
       3.	take any other action of any type whatsoever in connection with the foregoing which,
in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required
by, the undersigned, it being understood that the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Limited Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's
discretion.
       The undersigned hereby grants to each such attorney-in-fact full power and authority to do and
perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the
exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and
powers herein granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in serving
in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming,
any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of
1934.
       The undersigned hereby authorizes each such attorney-in-fact to file any original or copy of this
Limited Power of Attorney with any institution or person or in any public office, including the United
States Securities and Exchange Commission.
       I hereby revoke any and all Powers of Attorney executed by me prior to the date of this Limited
Power of Attorney that cover the subject matter set forth herein.
       This Limited Power of Attorney shall remain in full force and effect until the undersigned is no
longer required to file Forms 3, 4, and 5 with respect to the undersigned's holdings or transactions in
securities issued by the Company, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys-in-fact.
       Any provision of this Limited Power of Attorney judicially determined to be unenforceable or
invalid for any reason shall be entirely disregarded and such determination shall not affect or impair the
other provisions hereof.
       IN WITNESS WHEREOF, the undersigned has caused this Limited Power of Attorney to be
executed as of this 19th day of April, 2013.
/s/ David M. Shaffer
Name:  David M. Shaffer