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):

                                January 10, 2007

                            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))

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Item 2.02.   Results of Operations and Financial Condition.

Ultralife Batteries, Inc. (the "Company") announced that, based on a preliminary
review of results for the fourth quarter ended December 31, the Company expects
to report revenue of approximately $31 million. These results compare to
management's previous guidance, which estimated revenue of approximately $35
million for the fourth quarter.

The Company's press release is attached as Exhibit 99.1 to this Form 8-K. The
information set forth in this Form 8-K and the attached exhibit is being
furnished to and not filed with the Securities and Exchange Commission and shall
not be deemed to be incorporated by reference in any filing under the Securities
Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended,
except to the extent specifically provided in any such filing.

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 January 10, 2007.



                                    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: January 10, 2007
                                        By:    /s/Robert W. Fishback
                                               ---------------------
                                               Vice President of Finance and CFO


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                                INDEX TO EXHIBITS

(99)    Additional Exhibits

        99.1    Press Release dated January 10, 2007.

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