... provide power when AC supply is interrupted unexpectedly.l Super efficient, DC to AC conversion, minimizing ... critical overload protectionl Eco-friendly & non-polluting (green device)l Advanced technology optimizes battery life2.SPECIFICATION MODEL PG500 ... Kg)2.0Kg2.3Kg2.5KgPROTECTIONSDeep Discharge, Overcharge, Short Circuit, Overload, Battery Short, Over Voltage, Under Voltage. 3.Troubleshooting ...