Wireless Battery Life Indicator

Ask Fedora
1

I am really curious of how can I know the battery life of my wireless device…
I have got a wireless device and that doesnot show up any indicator on my laptop

1 Like
2

I have seen some bluetooh device showig battery status on the computer, while some do not.

3

Probably a function of the device itself. My logitech keyboard and trackball mouse don’t show the battery life. The trackball does give me a warning when it needs recharged, but otherwise nothing from either.

Of course you were careful to tell us what your wireless device is so others with the same device could possibly help – NOT!

4

Yeah ! I thought the same but it indeed didn’t seem to be the case…
Cuz my headphone had shown the battery percentage in Windows and in my phone
Let me give you another example…
I have a tablet that has the same issue cuz it runs Android KitKat
While my Android 10 gives the status of the headphone battery…

I think this might be the OS ??
I am pretty unsure about this and I want the help from you guys for this…
even for solving issue to show up the battery percentage…

5

solaar shows the battery level of my usb wireless mouse.

sudo dnf install solaar
sudo dnf install gnome-shell-extension-topicons-plus

(Note: I’m still on Fedora 33. I don’t know if topicons is available for Fedora 34)

solaar does not show the battery level of my Logitech k810 bluetooth keyboard, but I do get a notification when its battery level is down to 10%.

At the command line, you might try upower:

upower --dump | grep -E '^Device:|^\s+model:|^\s+percentage:'

Result on my laptop:

Device: /org/freedesktop/UPower/devices/keyboard_hid_34o88o5do3eo07oe0_battery
  model:                Logitech K810
    percentage:          45%
Device: /org/freedesktop/UPower/devices/mouse_dev_EB_71_E3_BD_04_F3
  model:                M720 Triathlon
    percentage:          100%

Also the files under /sys/class/power_supply/:

printf '%s\0' /sys/class/power_supply/*/capacity \
  | xargs -0 -I{} bash -c 'printf "%s: %s\n" "$1" "$(<"$1")"' _ {}

Result:

/sys/class/power_supply/hid-34:88:5d:3e:07:e0-battery/capacity: 45
3 Likes
6

Let’s say “can you please tell us more about your device” instead of this sort of negative dialogue. Remember that we must be excellent to each other here on the forum.

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