VICTRON SMART BATTERYPROTECT 12/24V 65Ah

Disconnect the battery from non-essential loads before it is completely discharged (which would damage the battery) or before it has enough power left to start the engine.
The connection/disconnection levels required by Bluetooth can be configured.
It can be disabled via Bluetooth.
Smart BatteryProtect is a one-way device. It can only handle current in one direction, so current from a load or current from a charger, but not both currents at the same time.
In addition to this, current can only pass from the IN terminal to the OUT terminal. In case of charging use, the battery is connected to the IN terminal, and in case of charger use, the charger is connected to the IN terminal.