Hi Mark,
Our experience with our new 5.0 and compressor fridge may be helpful although it doesn’t include numerical data.
We ordered ours with no solar, no inverter, and only the base 88AH lead battery. This because I am now mounting a large solar array on the roof and associated lithium and inverters.
So our first break-in trip was with the most basic electric. We drove 4200 miles and camped about 20 nights. Several of those nights were without hookups and a couple of times we were off-grid for a day and a half. I’m not sure I ever saw the battery monitor read below half. We had to compressor fridge set on 4 (out of 6). And it kept Ben and Jerry’s rock solid in the freezer. Other electric usage was the lights, furnace many nights and water pump.
I was impressed with the miserly power consumption and it was very very quiet. We lugged a 60 lb. 3000 watt generator over 8000 miles and never used it once.
With solar and lithium I can’t imagine you would have any issues. In lieu of a generator, I would consider a portable solar panel and/or a charge converter to let your tow vehicle help charge the batteries.
Good luck. It’s fun making these decisions.
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