Motorola Original PMNN4488 IMPRES Li-ion 3000 mAh Submersible BatteryNew low voltage model, IP68 submersible rating, Li-ion, 3000 mAhLatest version – PMNN4488AProvides up to 28 hours of typical operation in digital mode with new e series radiosThis battery is compatible with the PMLN7296 Silent Alert Belt Clip