Can anyone tell me How long the 6 cubic ft Dometic absorption refrigerator could run on one 20 lb tank of Propane and/ or how long the the Norcold would run on 2 x 100 AmpHour Lithium batteries fully charged if it was storming or my spot was heavily shaded and the solar panels were not bringing in significant energy? Trying to figure out if if I would have issues keeping my food cold with a compressor refrigerator if I couldn't be in direct sun for an extended period of time and how long the batteries would last.
It's probably something that could be calculated given that the Norcold pulls 3.4 amps but I don't fully understand that yet. I will attempt it here anyway and see if anyone can verify my calculations or point me in the right direction if it's wrong.
If I don't let the batteries go below 30% that would be 70 Ah each or 140 Ah total, so 140 Ah/3.4 A = 41.2 hrs and longer if I had solar power coming in. Can anyone tell me if I'm calculating that correctly?