... capacity,Perfect protection fuction:overload, short circuit, low battery voltage, improper operation etc,which won’t cause ... rated voltage48VDC(range :42VDC to 55VDC)Battery typemaintenance free,lead acid battery Power factor0.8Max efficiency≥87%(100% ... 3 seconds)Man-machine interfaceLCD input phase voltage/frequency/battery voltageAmbinet temperature0—40°CHumidity20—90% noncondensingNoise≤40DBA(for ...