Battery thresholds are reset after reboot to Windows

Support KDE Plasma
1

It is a dual-boot Thinkpad with the latest Manjaro KDE and Windows 10.
In Manjaro, I manually set the battery charge thresholds to 40% and 80% correspondingly:

/sys/class/power_supply/BAT0/charge_start_threshold = 40 [%] /sys/class/power_supply/BAT0/charge_stop_threshold = 80 [%]

Rebooting Manjaro does not change these. The settings are preserved and actually work.

However once I boot into Windows 10 and then go back to Manjaro, the settings are reset:
/sys/class/power_supply/BAT0/charge_start_threshold = 96 [%] /sys/class/power_supply/BAT0/charge_stop_threshold = 100 [%]

Is there any way to preserve the Manjaro settings at least for the time when Manjaro itself is running?

Thank you.

2

As far as I’m aware, you could use TLP which should automatically set these thresholds when you boot.

3

You could make use of /etc/sysctl.d/*.conf see man sysctl and man sysctl.conf

4

Thank you for the ideas. I will research a bit more and try these options.

5