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):

                                  July 29, 2003

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

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

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 July 29, 2003 Item 9. Regulation FD Disclosure. The Company announced that it will report its second quarter 2003 results for the period ended June 28, 2003 before the market opens on Thursday, August 7, 2003. Ultralife management will host an investor conference call at 10:00AM ET also on August 7, 2003. 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: July 29, 2003 By: /s/Robert W. Fishback ---------------------------- Robert W. Fishback Vice President - Finance and Chief Financial Officer 2

INDEX TO EXHIBITS (99) Additional Exhibits 99.1 Press Release dated July 29, 2003 3

                                                                    Exhibit 99.1



                                                                          
Company Contact:                 Investor Relations Contact:                    Media Contact:
Ultralife Batteries, Inc.        Lippert/Heilshorn & Associates, Inc.           Lippert/Heilshorn & Associates, Inc.
- -------------------------        ------------------------------------           ------------------------------------
Robert W. Fishback               Jody Burfening                                 Chenoa Taitt
(315) 332-7100                   (212) 838-3777                                 (212) 201-66354
bfishback@ulbi.com               jks@lhai.com                                   ctaitt@lhai.com
- ------------------               ------------                                   ---------------


               ULTRALIFE BATTERIES INC. TO REPORT SECOND QUARTER
                           RESULTS ON AUGUST 7, 2003

   - Investor Conference Call to be Webcast at Ultralife Batteries' Web Site -

Newark, NY, July 29, 2003 - Ultralife Batteries, Inc. (NASDAQ: ULBI) will report
its second  quarter  2003  results for the period ended June 28, 2003 before the
market  opens on Thursday,  August 7, 2003.  Ultralife  management  will host an
investor  conference  call at 10:00AM ET also on August 7, 2003.  Investors  are
invited   to   access   a   live   webcast   of   the    conference    call   at
http://www.ultralifebatteries.com/invest.asp.  A replay of the  webcast  will be
available  shortly  after the call at the same location and will be archived for
90 days.

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 leading world-class 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, United Kingdom and Germany.

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-9001/2000 certified.

Detailed  information  on  Ultralife is  available  at the  Company's  web site,
www.ultralifebatteries.com.

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