EXHIBIT 99.1


              Certification Pursuant to Section 1350 of Chapter 63
                      of Title 18 of the United States Code


     I, Glenn M. Grunewald, the chief executive officer of OnLine Power Supply,
Inc., certify that (i) the Quarterly Report on Form 10-QSB for the period ended
September 30, 2002, fully complies with the requirements of Section 13(a) of the
Securities Exchange Act of 1934 and (ii) the information contained in the Form
10-QSB financial statements fairly presents, in all material respects, the
financial condition and results of operations of OnLine Power Supply, Inc.

                                    /s/  Glenn M. Grunewald
                                  ----------------------------------------------
                                  Glenn M. Grunewald, Chief Executive Officer

                                  Date:  November 14, 2002




              Certification Pursuant to Section 1350 of Chapter 63
                      of Title 18 of the United States Code


     I, Richard L. Millspaugh, the chief financial officer of OnLine Power
Supply, Inc., certify that (i) the Quarterly Report on Form 10-QSB for the
period ended September 30, 2002, fully complies with the requirements of Section
13(a) of the Securities Exchange Act of 1934 and (ii) the information contained
in the Form 10-QSB financial statements fairly presents, in all material
respects, the financial condition and results of operations of OnLine Power
Supply, Inc.

                                    /s/  Richard L. Millspaugh
                                  ----------------------------------------------
                                  Richard L. Millspaugh,
                                  Chief Financial Officer

                                  Date:  November 14, 2002