Battery charging threshold

[tsitavets]

It would be great to implement battery charging threshold to increase battery lifespan when working a lot from AC. For example stop charging at 80% and start charging again at 60%. It would be nice to have keyboard shortcut to enable/disable feature and to have a possibility to change thresholds somehow (because optimal thresholds levels depend on battery usage). Also we can blink by power led to tell user is feature enabled (one time blink) /disabled (two times blink) upon pressing keyboard shortcut.

[crawfxrd]

Battery charging thresholds are implemented. Currently compile-time only. Need to add ACPI support and expose it in sysfs.

[crawfxrd]

Charging thresholds can now be set/queried with SBCT/GBCT ACPI methods [1].

system76_acpi has been updated to expose data in standard sysfs entries /sys/class/power_supply/BAT0/charge_control_{start,end}_threshold [2].

See also: pop-os/gnome-control-center#101