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Nutshell, about 4 hours. During the last power shutdown I left the refrigerator/freezer doors closed for about 6 hours at first. Then I plugged it into the power thing. It ran out of power after 4 hours. But, it worked! The power company turned things back on after about another 6 hours, and everything was fine. Nothing spoiled.
Sorry, there was a problem. Please try again later.About 4-5 hrs. But during a power outage if you aren't opening and closing up the fridge and freezer and if it's pretty full it'll stay cold for hours. It's a pretty good idea to get a thermometer with a probe, when it rises above what you want then you plug it in to get back to temp.
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