Quickly change charging threshold on specific Asus laptop models in Linux

Following Logix's article on How to limit battery charging on Asus laptops on Linux, specifically/likely on ZenBook models, I created this repo in order to share and save instructions on how to easily change the threshold with simple commands (like batteryMax 80) rather than having to change the .service file each time.

Provided you followed the article instructions and have a working service that follows the charge limit (some Arch distros have a UI setting to set an upper limit/threshold but won't work as of yet) you can follow these steps and change values just using alias NUMBER to change this threshold:

1. Create/copy a script file that modifies the threshold

Create or copy change-battery-threshold.sh to automate the process of changing battery-charge-threshold.service's threshold value. Make sure to use the correct battery name in place of BATT at line 13.

2. Make the file executable

Eg: chmod +x change-battery-threshold.sh.

3. Create an alias for your command

Choose an alias like batteryMax and add the alias for your system replacing PATH to follow your file location:

• bash: alias batteryMax='/PATH/change-battery-threshold.sh' + reload your .bashrc with source ~/.bashrc
• fish: modify ~/.config/fish/config.fish and add:

   # Update battery charging threshold
   alias batteryMax="/PATH/battery-change-threshold.sh"

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Resources:

• 📁 Local/backup article
• 📁 .service file example

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