Anybody have a back up generator? (just in case)

I just did a quick search and yea 500$ was one of the cheaper ones ive found but you might be able to find one cheaper than that... also found a couple adds on how to turn your lawnmower into a generator haha... got an extra lawnmower guy laying around? :)

I've got all the snake's temp related stuff plugged into an extra UPS (battery backup thing intended for use with computers) we had laying around. Josh said his should last a couple days. I haven't tested ours to see how long it will last with the snake equipment, but I don't think the battery on this one is big enough to last more than several hours. That is still a lot better than nothing!

I have also wondered about using those hand warmer things in an emergency. I figure since they are designed to be used for humans, they probably aren't going to get hot enough to cause a burn, but might go a really long way towards keeping a snake alive in case of an extended power outtage. Does anybody have any knowledge about using these with snakes?