Ubuntu – Battery not detected

battery

As the title say my laptop battery is not detected in maverick.
I'm using ubuntu since ever and I've never come across this problem.
I have a msi ms-171f vr705 series and everything is working fine except for the battery.

cat: /proc/acpi/battery/BAT1/info: No such device

Best Answer

Usually the Laptop battery is labelled BAT0. Have you tried running:

cat /proc/acpi/battery/BAT0/info

Also have you tried adding acpi=force onto your GRUB command line?

Open a terminal and run the following commands:

sudo gedit /etc/default/grub
Go to the line GRUB_CMDLINE_LINUX_DEFAULT=""
Replace it with GRUB_CMDLINE_LINUX_DEFAULT="acpi=force"
Save your changes.
Run sudo update-grub and reboot.

(If there is something already within the "" at Step 2 just add a space after it and add acpi=force)

Related Solutions

Ubuntu – Battery life starts at 2:30 hrs (99%), but less than 1 minute later is only 1:30 hrs (99%)

Your battery is shot and needs replaced:

energy-full: 21.1248 Wh
energy-full-design: 48.6 Wh
capacity: 43.4667%

This shows the battery is holding less than half of its design capacity.

voltage: 12.173 V

This is also off; the fully charged voltage should be 12.5 V.

Ubuntu – Battery not charging but detected

The following steps fixed my battery charging on a Carbon X1 5th gen. Your BIOS might be a bit different, but the principle might be the same:

shut down notebook
go to BIOS (to enter the BIOS, I pressed ENTER at boot, and then F1)
in the BIOS, go to Config, then selecte Disable Built-in Battery. This disables the battery completely (i.e. disconnects the battery circuit logically)
unplug the charger
press the power button for about 10 seconds
plug the charger back in
boot up

Now my notebook is charging again.

Best Answer

Related Solutions

Ubuntu – Battery life starts at 2:30 hrs (99%), but less than 1 minute later is only 1:30 hrs (99%)

Ubuntu – Battery not charging but detected

Related Question