... ; d.Waterproof/Dustproof. Feature1.Built-in automatic protection for cell over/under voltage, pack over/under voltage, ... charging with separate MOSFET control.3.No battery management system required.4.PowerPump cell-balancing. PowerPump technology transfers ... , current, temperature, SOC, ect. 12v160ah lithium battery for backup system Specifications12V-160AhVoltage14.8 VNominal Capacity (C/5, 23°C ...