... ,SMT PCB, LCD display,USB,4 battery backup &2 surge protection,12/9Ah battery ModelUPS-850GPPower850VA/450WTechnologyLine InteractiveInputInput Voltage Range145V-275Vac/90Vac ... MinutesCharge Time12 Hours(90%)LCD Status DisplayNormal,Fault,Battery,Charge,Overload,Load,Battery CapacityAudible AlarmBuzzerAC Unusual/Battery Low Voltage/Overload/Short Circuit ...