At home, we have sufficiently frequent (several times a year) micro power cuts (lasting only a few seconds) to be irritating: the computers all crash, and when they turn back on, there are lots of little passive-aggressive complaints about having been switched off incorrectly, and not to do it again, naughty, naughty.
So the latest toy is a UPS, now set up and sitting behind my desk:
It has six sockets on the UPS part (used by my computer and screens, and bits of the network), and two sockets that are just surge protected (scanner and a Raspberry Pi). It's essentially a lead acid battery, hence sat on a piece of wood rather than directly on the floor, just in case.
We tested it by switching off its mains connection: my system and the network kept running. The monitoring software claims the battery has about half an hour of capacity; moreover, it will shut the computer down properly if that is needed.
So we'll probably never have another power cut. But that means it's working one way or the other!
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