IMPRES Li?ion, 2850T IP57 Battery

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. This 2850 mAh NiMH battery is IP57 rated, which means it can be fully submersed at one meter for 30 minutes.