... meter display13.Overload, on-line, battery status LED/LCD14.Advanced Battery ManagementTA SERIES TECHNOLOGY SPECS ... Switch protect Overload CapacityOverload 125% for 10 Mins, 125%-150% for 30s .automatically resume when load becomenormal ... ,oupt,battery voltage,frequency,load rate,UPS state, temperature LEDMain input , bypass,Inverter,Battery,Over load, ...