Rob wrote:
FWIW I've got a Sony radio alarm (about 10 years old) and while there's
no battery to change it does keep time and presets for, IIRC from the
manual, 2 to 3 hours. It certainly works during the very occasional
power cut. I suspect the one you're looking at has something similar.
Why not just buy it mail order and return it under the distance selling
thing if it's not up to scratch?

Ah, good to hear from someone familiar with a similar product. 2 to 3
hours backup is good. Will bear the "distance selling thing" in mind if
there's any problem with it at all. I confess to having ordered the
item through the monstrous Amazon.

Eddy.