We were hesitant when we bought last fall and it had a 12v but so far it's gone well:
- I cools much quicker and has better control of temp.
- For the same size hole, you get probably 50% more interior space. It's massive compared to equivalent propane units we've had.
We have only done a couple overnights off grid, so the jury is still out. Ours came with a single battery and a 50w solar panel. Next year when we do Alaska, the plan is to pick up a second battery and 150w panel that can run thru the existing charge controller. The fridge pulls 40w in operation (assumes it's already cooled down). 200w solar should generate about 800whr per day or about 20hr of run time. In practice, the compressor doesn't run 24/7 but there are other electrical loads, so should work OK in theory.
12v fridges have been common for years in cruising boats where propane isn't an option.
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV