I made this script for my configuration of i3wm because in this distro there isn't a battery warning notifier.

This script regularly checks your battery charge and shows a warning in a text notify and if abilitate also an audio warning if you are about to completely drain your battery.

You need to clone the repository with:

git clone https://github.com/Wabri/i3battery

Then move into i3battery directory:

cd i3battery

And finally run and install i3battery:

./install.sh

Try to run the help command:

i3battery --help

If this return the commands list you can use than the i3battery is installed and you can use it.

To test notifications and audio you can use the arguments test:

i3battery --test-notify --test-audio

There are some arguments that you can use to change the configuration:

• --audio to abilitate audio (default=disable)
• --audio_path=<path_to_audio_directory> to specify the audio directory (default=.config/i3battery/audio/)
• --no-notify to disabilitate notifications (default=abilitate)
• --wt=<wt1>,<wt2>,<wt3> to set the warning threshold to different values (default=20,15,5)
• --time=<value> to define the time of cycle (default=20)
• --power-path=<value> to specify the path of the system class power supply (default=/sys/class/power_supply/)
• --bat=<value> to specify the battery you want to use (default=BAT0)

Here is an example:

i3battery --audio --audio-path=/home/wabri/.config/i3battery/audio/ --wt=77,78,76 --time=7 --power-path=/sys/class/power_supply/ --bat=BAT0

The default audio warning is installed on ~/.config/i3battery/audio/, you can change by override the files inside it (Warning: need to be wav files):

• warning.wav -> use when reach one of the threshold
• plug-in.wav -> use when the adapter goes online
• plug-out.wav -> use when the adapter goes offline

To use this on i3wm you need to append to your i3 config file this line:

exec --no-startup-id i3battery

The most common use is audio without notifications:

exec --no-startup-id i3battery --audio --no-notify

You can configure the running with the configurations below.

Execute this command on terminal:

ls /sys/class/power_supply/ | grep "BAT"

This can have multiple output:

1. The output is not null and return only the BAT0 string, you don't need to do anything else and you can use the script as is.

2. You have more than one batteries the output will be something like this:

   BAT0 BAT1 BAT2

   In this case you need to specify what battery you want to use for this script by adding this argument:

   i3battery --bat=BAT2

3. You have no output, this is the hard one. Maybe your power supply are stored in other path, than you need to find it and add the argument for that path:

   i3battery --power-path=/sys/class/power_supply/

   Make sure to use the right battery even in this case (e.g. BAT1, BAT0)