IMPRES Hi-Cap Li-Ion 2300 mAh battery (IP57, FM)
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 that is designed to maximize talk time and optimize battery cycle life — all automatically. Automated maintenance and a six-month extended capacity warranty apply when used with IMPRES chargers.
The NNTN8129 is a high-capacity 2300 mAh Li-Ion submersible battery that is intrinsically safe.