StirCrazy, our fridge is a 20cf residential and total hourly battery usage runs between 16 and 20 ah. So for 24 hours, draw on the battery bank is between 384 and 480 ah. We have and can run A/C as well.
Our intent was to boondock about 75% of the time but it has turned out to be more like 50%. Like 2oldman said, we wanted comfort and convenience. And like Vintage 465, our boondock limitation is water - we need water every 9 or 10 days. With a reasonable amount of sunshine we can boondock indefinitely without a generator (although we do have one). That does exclude December when the sun angle is too low and not enough hours of sunshine.