UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

     PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

                        Date of Report (Date of earliest
                                event reported):

                                February 3, 2004

                            ULTRALIFE BATTERIES, INC.
                            -------------------------
             (Exact name of registrant as specified in its charter)

                                    Delaware
                                    --------
         (State or other jurisdiction of incorporation or organization)

             0-20852                                   16-1387013
             -------                                   ----------
    (Commission File Number)              (I.R.S. Employer Identification No.)

                 2000 Technology Parkway, Newark, New York 14513
                 -----------------------------------------------
               (Address of principal executive offices) (Zip Code)

                                 (315) 332-7100
                                 --------------
              (Registrant's telephone number, including area code)



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Item 7. Financial Statements, Pro Forma Financials and Exhibits. (a) Financial Statements of Business Acquired. Not applicable. (b) Pro Forma Financial Information. Not applicable. (c) Exhibits. 99.1 Press Release dated February 3, 2004 Item 9. Regulation FD Disclosure. The Company will be presenting at the SG Cowen 25th Annual Global Aerospace Technology Conference on February 10, 2004. Refer to the attached Exhibit 99.1 for the entire text of the release, which Exhibit is being furnished but not filed in accordance with Regulation FD. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ULTRALIFE BATTERIES, INC. Dated: February 3, 2004 By: /s/Robert W. Fishback --------------------- Robert W. Fishback Vice President Finance & CFO 2

INDEX TO EXHIBITS (99) Additional Exhibits 99.1 Press Release dated February 3, 2004 3

                                                                    Exhibit 99.1

         Ultralife Batteries, Inc. to Present at SG Cowen 25th
            Annual Global Aerospace Technology Conference

   NEWARK, N.Y.--(BUSINESS WIRE)--Feb. 3, 2004--Ultralife Batteries,
Inc. (NASDAQ:ULBI) will be presenting at the SG Cowen 25th Annual
Global Aerospace Technology Conference on February 10, 2004.
   Ultralife Batteries management is scheduled to make a presentation
at 3:55 PM ET. A live webcast and replay of the presentation will be
available in the Investor Info - Event Calendar section of the
company's website: http://www.ultralifebatteries.com/invest.asp.

   About the 25th Annual Global Aerospace Technology Conference

   The invitation-only conference will be held at The Barclay
InterContinental Hotel in New York City and will feature management
presentations from over 40 leading aerospace and defense technology
companies.

   About Ultralife Batteries, Inc.

   Ultralife is a leading developer, manufacturer, and marketer of
standard and customized lithium primary (non-rechargeable), lithium
ion and lithium polymer rechargeable batteries. Ultralife's
high-energy batteries use advanced lithium technology and are used in
military, industrial and consumer portable electronic products.
Through its range of standard products and ability to customize for a
wide range of applications, Ultralife is able to provide the next
generation of battery solutions. OEM, retail and government customers
include Energizer, Kidde Safety, Philips Medical Systems, Radio Shack
and the national defense agencies of the United States and United
Kingdom, among others.
   Ultralife's headquarters, principal manufacturing and research
facilities are in Newark, New York, near Rochester. Ultralife (UK)
Ltd., a second manufacturing and research facility, is located in
Abingdon, U.K. Both facilities are ISO-9001 certified.
   Ultralife(R) is a registered trademark Ultralife Batteries, Inc.

    CONTACT: Ultralife Batteries, Inc.
             Robert W. Fishback, 315-332-7100
             bfishback@ulbi.com
              or
             Lippert/Heilshorn & Associates, Inc.
             Investor Relations Contact:
             Jody Burfening, 212-838-3777
             jburfening@lhai.com
              or
             Media Contact:
             Chenoa Taitt, 212-201-6635
             ctaitt@lhai.com



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