Victron Energy Smart BatteryProtect 12/24V-100A BPR110022000Protects the battery against excessive discharge and can be used as a system on/off switchThe Smart BatteryProtect disconnects the battery from non-essential loads before it is completely discharged (which would damage the battery) or before it has insufficient power left to crank the engine. The on/off input can be used as a system on/off switch.12/24V auto rangingThe Smart BatteryProtect automatically detects system voltage one time only.Bluetooth: programming made easyWhen using Bluetooth to program the Smart BatteryProtect any required engage/disengage levels can be set. Alternatively, one of nine predefined engage/disengage levels can be set with the programming pin (see manual). If required, Bluetooth can be disabled.A special setting for Li-ion batteriesIn this mode the BatteryProtect can be controlled by the VE.Bus BMS. Note: the BatteryProtect can also be used as a charge interrupter in between a battery charger and a Li-ion battery. See connection diagram in the manual.