Awesome! I bet that was looooong 5 minutes... I imagine it was pretty scary when the power went out just when they start hatching. I have to find a good used car battery that I can use as a backup... if I'm lucky enough to be home if and when the power goes out. It would be nice if incubators had "automatic" battery backup in the event of a power outage. They put them in alarm clocks, so why not incubators???
Get some water bottles out! Fill them up with hot hot water if it stays on longer than 10 mins. Which is past by now.