First, MH is in closed storage with all manuals inside, so can't look anything up. Now, we have so far always been hooked up to shore power when camping, but one of our 1st planned outings this year will involve NO electric. Please correct me where I go wrong or am misinformed. My understanding is that when driving the coach batteries will charge and then when parked, they will run the 12V lights, furnace motor and hopefully any ignition that may be needed for the refrig. running off Propane. It is going to be fairly cool in the evening, so do you think the batteries would "maybe" make it through the night running the furnace off and on? (I know that is kind of an open-ended question). Yes, we do have a generator, but there will be other campers in close proximaty and would prefer to not have to use it if possible. Thanks all for any info.