Victron Energy Smart BatteryProtect 12/24V-65A EX1 or simply leave it on

or simply leave it on and allow the built-in thermostat to take over once the temperate drops to 45 °F

UL1973 compliant engineering

and there is a power in terminal together with fused outputs to facilitate that

while the physical RJ45 terminals are rotated 180 degrees for easier cable access in cramped wiring bays

Victron Energy Smart BatteryProtect 12/24V-65A EX1 or simply leave it onThe 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. When 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