I've got an older Cyberpower UPS that I have the TV and cable box plugged into. I don't get power outages very often, but I had both plugged into the battery side for the occasional flickers. Today, ...

So I've had an old UPS for a few years. Never got a ton of use, and after a move in 2020, hadn't been used at all. I knew the battery was just about shot the last time I'd used it and then they'd sat ...