MEXICOWANDERER wrote:
How about this? It needs but a 16 gauge wire run to it (which stays by the battery). But when you shut it off or turn it on, it uses a tiny amount of power for just a moment...
http://www.pplmotorhomes.com/parts/rv-converters/002733.htm
MEXICOWANDERER has your answer. Mount this relay in the battery compartment, running the battery cables there. Mount a
polarity switching momentary contact switch in the MH running a small gauge wire to this relay. Just be SURE to bring the 12v positive from the hot side of the relay when it is disconnected. Otherwise, it won't have power to reconnect.


