It happens on any 2.4ghz network. I’m apparently not the only one, as there are some old reddit posts about it, too. It’s an oddly specific problem and I can’t figure out if it’s a software issue or if my battery really is borked.

I got mine pretty early on, one of the first waves to be shipped, and only issue I’ve had is having my battery level drop go zilch when switching to a 2.4Ghz Wifi network. Then I would have to plug it in, open the BIOS and switch to battery storage mode, unplug and wait about a minute. Plug it back in to boot it up, and battery levels are normal. I can fortunately just stick to 5Ghz networks nowadays and haven’t had a problem.