UPS850VA/450Watts,AVR, CPU control,SMT PCB, LCD display,USB,4 battery backup &2 surge protection,12/9Ah battery ModelUPS-850GPPower850VA/450WTechnologyLine InteractiveInputInput ... Lead-Acid Battery,LeakproofIncluded Battery Modules1×12V/9.0AhRuntimeFull Load 2.5 MinutesHalf Load 6.0 MinutesCharge Time12 Hours(90%)LCD ...