I once got back from a vacation to a freezer that felt... slightly off. My ice cream had crystallized, my frozen prawns were stuck together flat at the bottom of the drawer, and my chicken had freezer burn. Although I couldn't say for sure this was the result of a power cut, I felt it was safer to throw out the entire contents of the freezer. It was an expensive day.
Even now, I've got no idea whether that was a necessary precaution to take, or a total waste of food and money. But I've discovered a simple hack that gives me some major peace of mind before I go away, and I've never looked back.
