13

I have an Apple Wireless Keyboard and a Magic Trackpad, and I was wondering if there is a way to monitor the battery life remaining/percentage like there is in OSX.

16

There isn't a GUI for read wireless mouse or keyboard battery data.

You can find useful information on sysfs under /sys/class/power_supply/. For example the Apple Wireless Keyboard is under /sys/class/power_supply/hid-78:CA:39:4E:6F:C7-battery/. In the device directory there is a file named capacity, this is a capacity in percents.

So in summary, for reading Apple Wireless Keyboard battery capacity you should do:

cat /sys/class/power_supply/hid-78:CA:39:4E:6F:C7-battery/capacity

Note that hid-78:CA:39:4E:6F:C7-battery can be different for your device.

2
  • Huh, this is a really cool directory I never knew about! Thanks! Feb 11 '18 at 18:09
  • My device does not show in power_supply/ what to do? Jul 24 '18 at 14:29
9

In newer Ubuntu (starting from 16.04, I guess), check under Settings -> Power

Here's a screenshot for Ubuntu 16.04 .

3
  • Could you be specific about the first version you saw this on? Oct 10 '18 at 18:56
  • @MarkStosberg updated answer Oct 11 '18 at 19:50
  • Sadly on 18.04 AirPods do not show here.
    – Steven Lu
    Jun 8 '20 at 22:11
3

According to this article on webupd8, this functionality is planned for Ubuntu 11.10 as part of Ubuntu's new Power Indicator.

0

This site is temporarily in read only mode and not accepting new answers.

Not the answer you're looking for? Browse other questions tagged .