Notifying When Battery is Full in Linux


Case: I want to be notified by a sounding popup when the battery of my laptop is fully charged. I'm using Debian Linux and Gnome 3.

Requisites: The following applications are installed: sh, upower, paplay, notify-send.

Steps:

  • Open a text editor and put this code (adapted from here):
 #!/usr/bin/env bash  
 while true  
 do  
   export DISPLAY=:0.0  
   battery_percent=$(upower -i /org/freedesktop/UPower/devices/battery_BAT0 | grep -P -o 'percentage:     [0-9]+(?=%)' | grep -P -o [0-9]*)  
   if on_ac_power; then  
      echo $on_ac_power  
     if [ "$battery_percent" -gt 92 ]; then  
           paplay /usr/share/sounds/freedesktop/stereo/suspend-error.oga  
       notify-send --urgency CRITICAL "Battery full" "Level: ${battery_percent}% "  
     fi  
   fi  
   sleep 60 #  
 done
  • Save the file with .sh extension in the user's home directory, choice an understandable name, for example: /home/ronald/BatteryCharged.sh
  • Edit the file named .profile of the user's home directory, add at the bottom of the file the line below and save it: 
 add sh /home/ronald/BatteryCharged.sh &
  • Reboot the laptop and login.

Results: When the battery percentage reaches higher than 92% you will see a popup in the screen and a sound will rise, this will happen each minute until you unplug the power cable.
 
Battery popup in the screen

 

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