IMPRES NiMH Battery
IIMPRES 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 designed to maximize talk time and optimize battery cycle life -- all automatically. This 1690-mAh NiMH IMPRES battery is rated intrinsically safe.
Intrinsic Safety Standard: FM