Ever since I got my Lenovo Carbon X1, I've wished there was some way to limit the battery charge. I keep it plugged in to a USB hub and external monitor most of the time, which means that the battery is at 100% for weeks on end. That isn't particularly good for lithium ion batteries: it's better for battery life to stop charging at around 80%.
Lots of laptops, including Dells and Apples, have a charge limit feature in
their BIOS, but I searched through the CX1's BIOS several times and
never found anything, so I'd resigned myself..
But just this week I accidentally stumbled on a way to set this at runtime!
[ 16:17 Nov 12, 2022 More linux/laptop | permalink to this entry | ]