B+ motorhomes

Excellent info Snowman. Many thanks for putting that together. I noticed you don't have a cover on that relay box nor does it look like there are screw holes indicating one was ever mounted. I think they normally have a flat cover screwed on in four corners with sheet metal screws. At least that's how mine is.

I was trying to think of a way to put a trickle charger on the chassis battery and charge both batteries, but given what you've indicated, it appears I would need to do some additional wiring to charge both.