Danfosss, which may be related to Haier, started selling small 12V powered, variable frequency compressors for recreational boats at least 20 years ago. I had one with their compressor in it and a thermostat that adjusted the speed of the compressor to the load.
After it stabilized the compressor would cycle about 50% and ran at 3.5 amps rather than the full speed 7 amps. It used about 50 amp hours daily at 12V.
These new residential type, RV fridges are great but still use a lot of power, more than my boat fridge did, probably because they are big, maybe 16 cu ft vs 6. I bet that the one in the Renegade uses at least 100 amp hours daily.
That is a lot for a dry camper. So please, please hope that the tried and true absorption fridge doesn't go away. It uses maybe 5 amp hours per day for its controls and I can go a month on 20 lbs of propane.
David
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