Motorola MotoTRBO IMPRES Li-ion 2150 mAh, Submersible Battery - IP57 Rating - OEM Motorola IMPRES Batteries IMPRES batteries, when used with an IMPRES charger, provide automatic, adaptive reconditioning, end-of-life display and other advanced features. Data is stored in the battery and communicated to the charger via a unique IMPRES communication protocol which is designed to maximize talk-time and optimize battery cycle life all automatically. Can be charged and reconditioned without being removed from the radio.