I understand the need for properly sized wiring back from truck battery or alternator in order to charge a house battery bank.
On the other hand, given I start with a fully charge house battery, will a # ten wire from my trailer hitch plug (running lights terminal) connected to the separator, contribute at all to charging my house battery?
The only load will be interior lights during a quick two week trip with lots of daily driving.
We have no refer, no solar, no nuttin that needs 12 V but the lights.
Many thanks
DavidGraves
NOrth ORegon COast