[bushpilot]

given the way you "camp" you probably dont need to make 12vdc from 110vac BUT....as i say (w/ a 10kw gen)....im a slut for an outlet.

next week when we're at my inlaws (virginia) or my brother in laws (ft walton beach) - ill run a cord to an outlet (instead of running our Gen)...doing so is quieter & cheaper than running our Gen.

since some items are 12v (water pump, lights and a few other items) you need to either convert 110vac to 12vdc (to run those appliances) or keep the batteries charged (the converter charger does both).

i agree let the apu charge the batteries as you deplete them....but if youre running 110vac for appliances why not use the converter/charger keep the batteries up ?

truth be known - once i get parked, i shut off the house batts & let the converter/charger supply the needed 12vdc on its own via the incoming 110vac supply (its an old habit, that i developed to prevent over charging or boiling dry the batteries).

my only issue is when you need Air Conditioning you HAVE to run the APU....if you had a roof top AC unit you wouldnt have to run the APU (and therefore save on fuel).