Hi there,
I'm running Debian Buster on an old Asus EeePC and I see the battery always at 100% when unplugged, with an estimated battery life of 4200 hours, no matter how long I've been using it without AC power.
I suspect this might be bug #201351, marked as duplicate of #199981 and fixed in 5.0-rc1. Would you please consider backporting it to the 4.19 LTS kernel?
Salvatore Bonaccorso of the Debian Kernel Team wrote me on debian-kernel they follow the upstream 4.19.y, so the best chance of getting the fix in Debian is for you to include the patch.
Many thanks, Laurențiu
[1] https://bugzilla.kernel.org/show_bug.cgi?id=201351 [2] https://bugzilla.kernel.org/show_bug.cgi?id=199981 [3] https://patchwork.kernel.org/project/linux-acpi/patch/4426745.BlFkQnxG1M@asp...