linux

Know status and health battery in command-line

noraj (Alexandre ZANNI)
, ,
🇬🇧

To see your battery infos you can use acpi if you have it or directly see system files.

Upower command#

In both case you can use upower command to get some usefull infos:

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upower -i /org/freedesktop/UPower/devices/battery_BAT0

Example output:

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native-path:          BAT0
vendor:               ASUSTeK
model:                N56--52
power supply:         yes
updated:              ven. 01 avril 2016 08:58:27 CEST (99 seconds ago)
has history:          yes
has statistics:       yes
battery
  present:             yes
  rechargeable:        yes
  state:               fully-charged
  warning-level:       none
  energy:              41,162 Wh
  energy-empty:        0 Wh
  energy-full:         43,054 Wh
  energy-full-design:  57,2 Wh
  energy-rate:         0 W
  voltage:             12,377 V
  percentage:          95%
  capacity:            75,2692%
  technology:          lithium-ion
  icon-name:          'battery-full-charged-symbolic'

With acpi#

Many distributions don't use it so if you want to install it you can do:

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sudo zypper in acpi

OR

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sudo yum install acpi && sudo yum install acpitool

OR

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sudo apt-get install acpi && sudo apt-get install acpitool

To check is you have it installed:

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acpi -V

You can see battery health:

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cat /proc/acpi/battery/BAT0/info

and the battery status:

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cat /proc/acpi/battery/BAT0/state

OR

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acpi

You can also display ac adpter information:

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acpi -a

You can show thermal information:

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acpi -t

OR

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cat /proc/acpi/thermal_zone/THM/temperature

Without acpi#

Without acpi you will need to browse /sys/class/power_supply/BAT0 directory and display files that are inside.

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