... Back-Feed Protection11.Full protection,short circuit,Overload,over Temp., Battery low/high Protection12.Fault recovery13 ... mode ,Breaker under AC modeBattery ProtectionOver charge, Over discharge,DC Breaker,AlarmOver TemperatureVariable speed fan,LED ... Power Saver onAudible AlarmBattery Low,Battery High,Over Temp. Over load,Fail,Over chargeOptionalRS232 Communication,SNMP Net Agent,Remote ControlPower ...