I just completed the 12 volt power disconnect from the truck, took all of 10 minutes. It has a wire cap on that lead just in case I want to reconnect it for another purpose in the future. Now with the camper umbilical cord connected to the truck, when I switch off the house battery switch there is NO power at all in the camper, that was not the case before the wire disconnect.
I was also worried about over charging the expensive LIfeline batteries in the old set up. My MPPT controller was reading the house AND the starting batteries when determining how much amps to put out. Not good.
The other day with the umbilical cord plugged in, the solar charger was putting out 3.5 amps, when I unplugged the cord it dropped to 1.5 amps. I spent good money on a solar controller so I could dial in the exact charging spec.s of the Lifeline batteries, the charger outputting more than just the house batteries needed I felt was NOT GOOD.
In reverse, the trucks alternator/regulator when running is also charging the house batteries at starting batteries specifications, not Lifeline spec.s.
After reading the spec.s on the Blue Sea #7611 ACR, it just looks to me like a isolator, not any kind of regulator or charger. Please correct me if I am wrong on that.
Good to finally have totally separate charging systems.