My experience is with the standard two house batteries that come with the rv when you purchase it, your fridge will drain the batteries with in a day or two when you add in running lights etc. I added 4 lifeline 6Ct AGM batteries and have 320 watts solar and this will keep up with 4 days dry camping no problem when turning fridge off at night. Just make sure to not have the fridge set on the coldest settings.
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