Battery isolator
Wondering what everybody is doing to isolate their batteries separate from the truck starting battery. I used to just put a solenoid in the charge line to the rv.With the newer style trucks what is th...
Forum Discussion
There are voltage controlled "battery combiners" specifically made for this. They sense voltage above the fully charged battery (usually around 13.1V) and close a relay when it is exceeded, indicating that something is charging the system. This has the advantage of not needing a connection to the ignition, not connecting if the ignition is left on but the engine is not running, and a contactor specifically designed for continuous high current. They cost a little more than a simple relay though. Search Amazon or your favorite marine supplier for "battery combiner".
