This script generates notifications when your laptop battery is critically low.
It works by beeping and by making the display blink once.
Alternatively, an audio file can be provided for the sound notification.
Notifications are generated every 2.5 minutes, provided the laptop is not charging and the battery level reported by acpi is less than or equal to 5%.
It can be used by simply running bat_alert.sh.
It takes an optional argument, which represents the path of the audio file to play as a sound alert.
Note that if the duration of the audio file exceeds 2.5 seconds, only the first 2.5 seconds will be played.
bat_alert can be used with the i3 window manager by adding the following line to your config file:
exec --no-startup-id <path>
where <path>is the path to bat_alert.sh.