IMPRES Intrinsically Safe Li-Ion 2300 mAh high capacity submersible battery, IP57
IMPRES battery charger REQUIRED. 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.
IMPRES XPR7550 Battery (NNTN8129AR)
APX 4000, XPR 7350, XPR 7550