... battery status LED/LCD14.Advanced Battery ManagementTA SERIES TECHNOLOGY SPECS MODELTA2KTA3KTA4KTA6KTA8KTA10KTA12KTA15KTA20KPower capacity2KVA3KVA4KVA6KVA8KVA10KVA12KVA15KVA20KVA1.6KW2.4KW3.2KW4. ... LCDInput,oupt,battery voltage,frequency,load rate,UPS state, temperature LEDMain input , bypass,Inverter ... Communication1.Power status 2.UPS shutdown 3.monitor UPS status 4.UPS self test 5.auto-save ...