... backup time10.Generator compatible11.Cold start12.Load/Battery power meter display13.Overload, on-line, battery status LED/ ... Voltage48VDC96VDC192VDC Charge current6A6A6A6A6A6A6A6A6A Panel indication LCDInput,oupt,battery voltage,frequency,load rate,UPS state, temperature LEDMain input , ... Audible Noise<55db (at 1 meter) Environment Temperature0--40 °C Humidity0%-95% Low Frequency Online UPS TA2K-20K