ENERSYS ACQUIRES BULGARIAN BATTERY COMPANY

READING, Pa., USA, May 18, 2007 – EnerSys (NYSE: ENS), the world's largest manufacturer, marketer, and distributor of industrial batteries, today announced that it has completed the acquisition of Energia AD, a producer of industrial batteries, located in Targovishte, Bulgaria. The total purchase price for this transaction including transaction fees is approximately €13 million, approximately $17 million, and was financed using existing EnerSys credit facilities.

“As noted on previous occasions we will continue to seek accretive acquisition opportunities,” stated John Craig, chairman, president and CEO of EnerSys. “This acquisition is particularly attractive by providing us with greater market penetration in the rapidly growing Eastern European and Russian markets while providing the Company with additional low cost manufacturing capacity.”

Caution Concerning Forward-Looking Statements
This press release (and oral statements made regarding the subjects of this release) contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements may include, but are not limited to, (i) statements regarding EnerSys' plans, objectives, expectations and intentions and other statements contained in this press release that are not historical facts, including statements identified by words such as "expects," "anticipates," "intends," "plans," "believes," "seeks," "estimates," "will" or words of similar meaning; and (ii) statements about the benefits of the investment in Energia including any impact on our financial and operating results and estimates, and any impact on EnerSys' market position that may be realized from the investment.

These forward-looking statements are based upon management's current beliefs or expectations and are inherently subject to significant business, economic, and competitive uncertainties and contingencies many of which are beyond our control. The following factors, among others, could cause actual results to differ materially from those described in the forward-looking statements: (1) our ability to successfully integrate the Energia businesses; (2) the possibility that EnerSys may not realize revenue benefits from the proposed investment within expected time frames; (3) operating costs and business disruption following the proposed investment, including possible adverse effects on relationships with employees, may be greater than expected; and (4) competition may adversely affect the acquired business and result in customer loss. EnerSys does not undertake any obligation to update any forward-looking statement to reflect circumstances or events that occur after the date such forward-looking statement is made.

For more information, contact Richard Zuidema, executive vice president, EnerSys, P.O. Box 14145, Reading, PA 19612-4145, USA. Tel: 800-538-3627; Website: http://www.enersys.com.
About EnerSys: EnerSys, the world leader in stored energy solutions for industrial applications, manufactures and distributes reserve power and motive power batteries, chargers, power equipment and battery accessories to customers worldwide. Motive power batteries are utilized in electric forklift trucks and other commercial electric powered vehicles. Reserve power batteries are used in the telecommunication and utility industries, uninterruptible power suppliers, and numerous applications requiring standby power. The company also provides aftermarket and customer support services to its customers from over 100 countries through its sales and manufacturing locations around the world.
More information regarding EnerSys can be found at http://www.enersys.com.