10-Q/A

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 10-Q/A

             [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF
                      THE SECURITIES EXCHANGE ACT OF 1934

                For the quarterly period ended September 30, 2000

                                       or

[ ] Transition report pursuant to section 13 or 15(d) of the Securities Exchange
                   Act of 1934 for the transition period from

                      ________________ to ________________

                         Commission file number 0-20852

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

                 Delaware                               16-1387013
      (State or other jurisdiction          (I.R.S. Employer Identification No.)
    of incorporation or organization)

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

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

- --------------------------------------------------------------------------------
              (Former name, former address and former fiscal year,
                         if changed since last report)


Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days. Yes..X... No.....

Indicate the number of shares outstanding of each of the issuer's classes of
common stock, as of the latest practicable date.

          Common stock, $.10 par value -11,134,326 shares outstanding
                            as of October 31, 2000.



Item 6.  Exhibits and Reports on Form 8-K

(a)  Exhibits

     27. Financial Data Schedule               Filed herewith

(b)  Reports on Form 8-K

     None


                                       2


SIGNATURES

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 thereunto duly authorized.


                                    ULTRALIFE BATTERIES, INC.
                                          (Registrant)


   Date:  November 14, 2000         By: /s/John D. Kavazanjian
          -----------------             ------------------------------
                                           John D. Kavazanjian
                                           President and Chief Executive Officer


   Date:  November 14, 2000         By: /s/Robert W. Fishback
          -----------------             ------------------------------
                                           Robert W. Fishback
                                           Vice President - Finance and Chief
                                           Financial Officer



                                       3

EX-27

 


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<FISCAL-YEAR-END>                        JUN-30-2001
<PERIOD-START>                            JUL-1-2000
<PERIOD-END>                             SEP-30-2000
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<SECURITIES>                                  12,959
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