dave17352 wrote:
My fridge haier fridge uses 100 watts when running. So 8.33 amps per hour when compressor is running.
This is 60AH in 24 hrs at 30% cycle, or 80AH at 40% cycle. Plus inverter losses 10-15%. Plus start-up peaks. Together with other loads and two batteries this is a one-night affair, maybe one night plus one day until lunch when it's not too hot. Then you have to run a generator or go home.
12V compressor fridges are a little more efficient. About 20% more efficient if terms of DC watts per cu.ft, 'cause they have a compressor with no start-up surge and there is no inverter. They are mostly small, like 3.5 c.f. Dometic Cr110, though there are a few bigger models 8-9 c.f. from other brands. Small 12V compressor fridge can run on a small solar panel, yes.
