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):

                                February 1, 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))




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, 2006,  the Company
expects to report an operating loss of approximately  $1.5 million on revenue in
the range of $30.0 million to $30.5 million.

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 February 1, 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: February 1, 2007
                                               By: /s/ Robert W. Fishback
                                               ----------------------------
                                               Robert W. Fishback
                                               Vice President of Finance and CFO



                                INDEX TO EXHIBITS

(99)     Additional Exhibits

         99.1     Press Release dated February 1, 2007.