SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Shea John A (Last) (First) (Middle) 2366 BERNVILLE ROAD (Street) READING PA 19605 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol EnerSys [ ENS ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Executive VP, Americas
	3. Date of Earliest Transaction (Month/Day/Year) 06/10/2010
	4. If Amendment, Date of Original Filed (Month/Day/Year) 06/14/2010	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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/10/2010		M		4,454	A	$18.25	68,667.26	D
Common Stock	06/10/2010		F		3,750	D	$23.54	64,917.26	D
Common Stock	06/11/2010		M		16,739	A	$16.2	81,656.26	D
Common Stock	06/11/2010		F		12,969(1)	D	$23.87	68,687.26(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Options	$18.25	06/10/2010		M			4,454	(2)	05/29/2017	Common Stock	0	$0	4,455	D
Stock Options	$16.2	06/11/2010		M			16,739	(3)	05/18/2019	Common Stock	0	$0	33,485(4)	D

Explanation of Responses:

1. The number of shares forfeited to satisfy the reporting person's tax withholding obligation on June 11, 2010, and reported on the reporting person's original Form 4, was understanded by 16 shares.

2. These options vest in four equal installments on May 29, 2008, 2009, 2010 and 2011, subject to acceleration or cancellation upon the occurrence of certain events.

3. These options vest in three equal installments on May 18, 2010, 2011 and 2012, subject to acceleration or cancellation upon the occurrence of certain events.

4. This reporting person holds an aggregate total of 98,656 option shares with various prices, exercisability and expiration dates.

	Karen J. Yodis, by Power of Attorney	06/14/2010
	** 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 4 (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).
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