Grit dog wrote:
Not needed. See how it's hooked up and figure out how to ditch it if you don't need the xtra juice.
Sounds like a cool factory ready rv setup though to get an extra battery in the bank if it's isolated from the start battery.
I thought about doing that with my diesel, as in the summer time, under normal conditions it only needs one good high capacity battery.
The just parallel them back up in the truck when not on a camper trip.
Wouldn't you have the issue of it being an automotive battery doing a deep cycle battery job? Suppose you could run an dual purpose marine /rv but now you are asking it to participate in cranking over the diesel in winter. Marine /rv are made to crank but not sure if being the partner to cranking a diesel would be good. Let's ask Mex.....