I have posted a couple of times about this in the past few days but I used a power inverter in my car plugged into the cigarette lighter 5-6 hours and it kept the incubator running on 2 occasions this week , I have lived here three years with no outages and then I set 39 eggs last Friday, and here come the storms. I came home from the store yesterday and the electricity was off and the incubator was down to 85 degrees so I plugged the inverter in and heated them back up Candled them today and I guess they are ok I saw a little movement in some either it was them moving or I shook the eggs, Hard to say but I think they are ok, Temp came back up and has been stable since. I am so happy I have the inverter. cheap insurance for the Mail order eggs I am trying to hatch.