Motorola 900 mAh Lithium-Ion Extended Battery for Motorola StarTAC Phones Offers increased capacity Lighter weight than similar-size NiMH or ni-cad batteries 1-hour rapid charge with the phone power off 3-hour slow charge with the phone power off For use with Motorola ST7797, ST7790, ST7860, ST7867, ST7868, ST7760, ST7762, 6500, 3000 phones