Ubuntu check battery informations

• List of current device paths :
  upower --enumerate

• List all information about battery_BAT0 :
  upower -i /org/freedesktop/UPower/devices/battery_BAT0

• Check path /sys/class/power_supply/BAT0/
  cat /sys/class/power_supply/BAT0/capacity

• Using acpi :
  -b: The shortened form of –battery and it gives battery details.
  -t: The shortened form of –thermal and shows thermal details.
  -a: The shortened form of –ac-adapter to give ac adapter details.
  -c: The abbreviation of –cooling. It gives information regarding your cooling device.
  -V: Stands for –everything. It produces output about every device connected and overrides other options.