Question about Battery, Propane, and Refrig while towing.

[Cate&Rob]

I stand corrected! (Sorry for the confusion)

On my Momentum the converter supplies power to the 12v systems whether the cut off switch is On or Off.

So in my case, I guess if the switch is Off then the converter won't charge the battery because the converter apparently joins the system on the fuse panel side of the switch not the battery side. Hmmmmm

My 303 is wired as Jim describes in this post. Never made sense to me either . Having a "disconnect switch" in the middle of an electrical system that disconnects some things but not other things is just a source of confusion. I replaced mine (as many others on this forum have done) with a true disconnect at the batteries so that I know when the batteries are truly isolated. This does leave everything else powered by the converter if shore power is connected.

Rob

[JCR GD]

Jim, sounds good. I was going to try it on my trailer tomorrow because I thought it was that way. Now I don’t have to

I would still test it... ya never know

[D2Reid]

Different models/manufacturers wire the battery cutoff differently, there is no standard. The only way to know for sure is to test your own RV.