... Advanced Battery Management 2.Automatic charging in UPS off mode 3.Smart RS-232 communication ... Panel Indication LCDInput,oupt,battery voltage,frequency,load rate,UPS state, temperature LEDMain input , bypass,Inverter,Battery ... InterfaceRS232 Software1.Power status 2.UPS shutdown 3.Monitor UPS status 4.UPS self test 5.Auto-save files ... Package weight(Kg)98165165350 Low Frequency Online UPS TB10K-30K