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

                                    FORM 8-K

                                 Current Report
     PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

                Date of Report (Date of earliest event reported):

                                November 10, 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)


Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions.

[ ] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))

                                       1

Item 7.01. Regulation FD Disclosure. On November 10, 2004, Ultralife Batteries, Inc. (the "Company")will be presenting at the Western New York Investors Conference in Rochester on November 18, 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. Item 9.01. 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 November 10, 2004. 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: November 10, 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 November 10, 2004. 3

                                                                    Exhibit 99.1

   Ultralife Batteries, Inc. to Present at WNY Investors Conference

    NEWARK, N.Y.--(BUSINESS WIRE)--Nov. 10, 2004--Ultralife Batteries,
Inc. (NASDAQ:ULBI) will be presenting at the Western New York
Investors Conference in Rochester on November 18.
    Ultralife Batteries management is scheduled to make a presentation
at 2:30 p.m. Eastern Time. A live audio webcast and replay of the
presentation will be available in the Investor Relations section of
the company's Web site, http://www.ultralifebatteries.com/invest.asp.

    About the WNYI Conference

    The Western New York Investors Conference was formed to bring
together the growing companies of Western New York with an audience of
institutional investors, analysts and financial advisors from
throughout New York, the Northeast, Midwest and Mid-Atlantic regions.
These companies feature a variety of industries and represent a large
spread of market capitalization and have overcome the economic
challenges of the region through diversification, their distinct
competitive strategies and their strong management teams
    For more information about the conference please visit
www.wnyinvest.org.

    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 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:
             Jody Burfening, 212-838-3777
             jburfening@lhai.com
             or
             Media:
             Chenoa Taitt, 212-201-6635
             ctaitt@lhai.com