This latest hatch has about convinced me to keep my incubator plugged into an uninterruptable power supply. Two power failures! The first one was the day after I moved the eggs into the hatching trays which lasted for forty minutes. Box temp fell to 92. Second one was today and lasted four hours. Fortunately all but the stragglers had hatched and it was 94 outside so the brooder chicks never even noticed except for it being a bit dark under the hover. Ended up taking the last batch of hatched chicks out of the incubator before I had planned on it as I was becoming concerned that with the fan being off they might eventually smother since I had about a dozen hatched and dry. It's proving to be a stormy summer so when we start hatching again in August I expect it'll happen again which has got me to thinking about a UPS. Anyone use one with your incubator?