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 3000 mAh, low voltage battery provides 25+ hours talk time when used with compatible MOTOTRBO Enhanced Series Radios. Designed for the Silent Alert Belt Clip (PMLN7296), it is ideal for loud environments where you otherwise would miss incoming communication. The IP67 rating means it can be fully submersed at one meter for 30 minutes.