... time, short recharge, the temperature compensation system helps to increase the life of batteries ... load allowed•Cold start function•Smart battery control function•Generator compatible Specifications: ModelGP33-20 Kva ... .D.<2% with linear load, <5% with nonlinear loadCrest factor / power factor3:1 / 0 ... , DC fuse open, %v power supply fail, 13.5 v power supply fail, inverter overvoltage, 200% overload ...