Just noted AGLs reply (thanks for that), however I had a power outage recently and noted the following. The battery was flat and so there was no power in the house. When the mains power returned about an hour later, the non-battery circuits got power back immediately, with the battery backup circuits getting power (without my intervention) about 20 seconds later.Therefore it would seem that you do not need to worry about loosing the content of the fridge.Hope this helpsRob