The 80 quart cooler is a great item to have. I tested it with my new Okmo 2000 watt solar battery/ generator and the combo works like a champ. The Okmo ran the Newair for a solid 48 hours on a full charge, maintaining 35 degrees in the fridge and 30 degrees in the freezer. Perfect for power outages to keep my meds and perishable foods cool.