Newbie here. I've never boon-docked before, and was wondering how long I can have the lights on in my TT before the battery gets to a critical level (from what I've read below half way charged is bad...
With just lights, and water heater and refrig on propane, you should get 1 or 2 nights. We have gone 6 days but just using lights when necessary (that does not include leaving several lights on for 3 hours). Propane lantern outside and one of those 6 volt lantern type portable lights in side will save a lot of your battery, which you are trying to save so the refrigerator will work. Turn the furnace on and all bets are off.