Arch Linux

alyxv

Member

Registered: 2025-01-30

Posts: 2

ThinkPad 470 BAT0 stuck at 54% (waiting to charge)

Since almost over a year my internal battery is not charging or powering my ThinkPad.

I always have this Power Manager output for BAT0:

I also get the following output from tlp command:

# tlp recalibrate BAT0
Setting temporary charge thresholds for BAT0:
  start =  96 (no change)
  stop  = 100 (no change)
Error: discharge BAT0 malfunction -- check your hardware (battery, charger).
Battery recalibration aborted.

Checking the Diagnostics UEFI on boot shows everything but a battery module for testing.

If I unplug the external battery the laptop turns off immediately so I guess my internal battery is just dead.

These are my questions:

• Why is BAT0 still shown with the information from Power Manager?

• Is the battery just dead or could it be a problem with the motherboard? What can I do to be sure?

• Why does it not show up in the diagnostics menu?

jonno2002

Member

Registered: 2016-11-21

Posts: 765

Re: ThinkPad 470 BAT0 stuck at 54% (waiting to charge)

i hate to quote reddit but it seems to be the relevant info:
https://www.reddit.com/r/thinkpad/comme … confusion/

this part mainly:

I switched from Legacy BIOS to UEFI, updated my bios and firmware to the latest versions, re-installed Linux, and batteries are now switching as needed, without need for the above script.

also this thread:
https://forums.linuxmint.com/viewtopic.php?t=347743

alyxv

Member

Registered: 2025-01-30

Posts: 2

Re: ThinkPad 470 BAT0 stuck at 54% (waiting to charge)

Sorry for this late reply, I already updated anything and reinstalled too. However in the end, I bought a new internal battery which works great now. I don't know if the old one is dead or if it would be detected again after reconnecting the interface again.
I will update this post if I find the time and will to try out the old one.

Thanks anyway!