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A good alternative if you want a real refrigerator (instead of the peltier-based "cooler") would be one of the DC or AC/DC compressor fridges from TruckFridge, Vitrifrigo, Dometic, etc. These are very efficient and some can even make ice.Probably will want a 2nd (isolated) battery if you'll be running long-term, though. I have a TF49 fridge with a 100AH deep cycle battery and a 60watt solar panel, so I can run the fridge basically indefinitely.
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