Fit to the device models:Casio IT2000, IT-2000, IT-2000D30E, IT-2000D33E, IT3000, IT-3000, IT3100, IT-3100, IT-3100 M-53E. These parts are in no way associated with the initial manufacturers parts. Compatible with the battery part numbers:DT-5025LAT, DT-9023, DT-9023LI, DT-9723, DT-9723LI, DT-9723LIC.