EnerSys Files Registration Statement for Initial Public Offering

Reading, PA - May 17, 2004 – EnerSys announced today that it has filed a Registration Statement with the Securities and Exchange Commission for a proposed initial public offering of shares of its common stock. The Company will receive all of the proceeds of the offering.

The joint bookrunning lead managers will be Morgan Stanley & Company Incorporated and Lehman Brothers Inc. Banc of America Securities LLC will be co-lead manager. The number of shares to be offered on behalf of the Company and the price range for the offering have not yet been determined.

When available, a preliminary prospectus relating to these securities may be obtained from Morgan Stanley, Lehman Brothers or Banc of America Securities at the addresses set forth below.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy these securities be accepted prior to the time the registration statement becomes effective. This release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of these securities in any state in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such state.

EnerSys' products include reserve power batteries which are used to provide backup power for the continuous operation of critical systems, such as telecommunications and computer systems, including process control and database systems; and motive power batteries which are used to power mobile manufacturing, warehousing and other ground handling equipment, primarily electric industrial forklift trucks.

Morgan Stanley & Co. Incorporated
Attn: Prospectus Dept.
1585 Broadway
New York, NY 10036
(212) 761-4000
Lehman Brothers Inc.
c/o ADP Financial Services
Integrated Distribution Services
1155 Long Island Avenue
Edgewood, NY 11717
(631) 254-7106
Banc of America Securities LLC
Capital Markets Operations
(Prospectus Fulfillment)
100 W 33rd Street, 3rd Floor
New York, NY 10001
Mail Code – NY1-509 03-22
(646) 733-4319