Apple Macbook M-series chip (Asahi Linux)
Kernel versions Post 6.3.xxx and Pre 6.2.xxx have different capability, hence will be explained seperately.
Capability
Post Kernel 6.3.xxx
- 2 preset Full capacity and Maximum Life Span mode set at 100% and 80%.
- Fixed threshold (not customizable).
Pre Kernel 6.2.xxx
- 3 presets: Full Capacity Mode, Balance Mode, and Maximum Life Span mode.
- Default threshold values of these 3 preset modes are set at 100%, 80%, and 60%.
- Each preset threshold value can be customized between 100-80 %, 85-65 %, and 85-50 % respectively.
Dependencies
Depends on asahi linux kernel.
https://asahilinux.org/
asahi linux kernel is supported by a third party and this extension/author is not in any way responsible for the kernel module installation, bugs or damages.
Testing charging threshold using command-line
Charging mode can be set by using echo command in terminal.
Post Kernel 6.3.xxx
For example:
To apply threshold value of 80, the command would be.
Require root privileges
echo '80' | pkexec tee /sys/class/power_supply/macsmc-battery/charge_control_end_threshold
sudo also can be used in place of pkexec in the above commands as both sudo and pkexec can be use to run commands in root mode. To make use of polkit rules, the extension uses pkexec.
In kernel 6.3.xxx, setting threshold value of charge_control_start_threshold is not required.
The value of charge_control_start_threshold is automatically set by the kernel, depending on the value of charge_control_end_threshold.
Post Kernel 6.2.xxx
For example:
To apply start threshold value of 55, end threshold value of 60, command would be.
Require root privileges
echo '55' | pkexec tee /sys/class/power_supply/macsmc-battery/charge_control_start_threshold
echo '60' | pkexec tee /sys/class/power_supply/macsmc-battery/charge_control_end_threshold
sudo also can be used in place of pkexec in the above commands as both sudo and pkexec can be use to run commands in root mode. To make use of polkit rules, the extension uses pkexec.
The current threshold value can also be read using cat command in terminal.
cat /sys/class/power_supply/macsmc-battery/charge_control_end_threshold
Condition for applying threshold
- For Post Kernel 6.3.xxx , accepted values for
charge_control_end_threshold: 80 or 100- For Pre Kernel 6.2.xxx , accepted values for
charge_control_end_threshold: 1 or 100- For Pre Kernel 6.2.xxx , accepted values for
charge_control_start_threshold: 0 or 99
If charging threshold are applied successfully using above commands, the extension is compatible.
Quick Settings
Post Kernel 6.3.xxx
Pre Kernel 6.2.xxx
Extension Preferences
Post Kernel 6.3.xxx
Pre Kernel 6.2.xxx
