Product Dimensions: 120mm×80mm×182mm; Rated Voltage: DC 29.6V; Charging Limit Voltage: DC 33.6V; Charging Current: 3.5A; Rated Capacity: 8000mAh, 236.8Wh; Executive Standard: IS 16046(Part 2)/IEC 62133-2; Self-developed Battery Management System (BMS); Functions: Power level indication, storage self-discharge protection, balanced charging protection, overcharge protection, overdischarge protection, short circuit protection and battery load detection protection.