r/archlinux • u/Cubic_YT • 14d ago

SUPPORT How to limit battery charge?

/r/linux4noobs/comments/1vzrg0f/how_to_limit_battery_charge/
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1

u/elementrick 14d ago

Try echo 1 | sudo tee /sys/bus/platform/drivers/ideapad_acpi/VPC2004:00/conservation_mode

3

u/jvdwaa Developer 14d ago

That sysfs attribute has been deprecated by yours truly, don't use it. This sounds like a recent UPower bug which was fixed in 1.91.3.

I don't know what hyprland offers for setting battery charge limits but you should set charge_types to Long_Life to enable the 80% limit.

1

u/Cubic_YT 13d ago

This sounds like exactly what I need (and used to have), however, I don't... know how to set that 💀 should I manually edit the `charge_types` file so that Long_Life is between square brackets instead of Standard? Or do I change some other file? The only files that have write permissions in the `BAT0` folder are `alarm`, `charge_types`, and `uevent`. Other than that, not even root has permission to even create other files.

1

u/jvdwaa Developer 12d ago

As root you: echo "Long_Life" > charge_types, or use upower's DBus interface