Between trips, my unit is parked in a shed with electrical power hooked up and refrigerator turned off. A trip never surprises me (not spontaneous enough, maybe). When a trip is upcoming, I turn the fridge ON maybe a full day before the trip set to AUTO so it uses electricity. It is easier to replenish electricity for me. I have been known to put ice packs in the freezer but not very often. I never adjust the thermistor hoping the fridge will cool faster (see 5picker
's post). When I shut down power to leave for the trip, the fridge automatically switches to propane as a heating source and stays that way until I plug in shore power at the campsite.