Laptop battery problem [solved]

Getting your soundcard to work, using Debian on non-i386 hardware, etc

Laptop battery problem [solved]

Postby Hallvor » 2020-09-20 17:13

I got a new battery for a laptop I own.

The problem:
On first boot, it detected the new battery and loaded all the way to 100%. I disconnected the power supply and used the computer the next morning. The battery level had declined from 100% to 98%. A few minutes later, the laptop suddenly warned that the battery level was low (6%!).

For some reason, the battery now stops charging at 30%, and still only lasts a few minutes before complaining about low power, jumping from, say, 28% to 6%. Thermals were fine.

What I have tried:
Took out the battery and AC power, and held the power button for 30 seconds.
Checked the Bios.
Checked the logs.

What I found:
Except the interesting piece about battery thresholds below, nothing interesting. TLP is removed, but to no avail.

Edit: It won't charge past 9% now....

Code: Select all
Sep 20 18:25:53 laptop-hkb kernel: [   11.894688] battery: ACPI: Battery Slot [BAT0] (battery present)
Sep 20 19:09:02 laptop-hkb kernel: [    0.050463]   DMA zone: 3996 pages, LIFO batch:0
Sep 20 19:09:02 laptop-hkb kernel: [    0.050564]   DMA32 zone: 888248 pages, LIFO batch:63
Sep 20 19:09:02 laptop-hkb kernel: [    0.073610]   Normal zone: 3274240 pages, LIFO batch:63
Sep 20 19:09:02 laptop-hkb kernel: [    1.992791] libata version 3.00 loaded.
Sep 20 19:09:02 laptop-hkb kernel: [   10.921548] battery: ACPI: Battery Slot [BAT0] (battery present)


Code: Select all
hallvor@laptop-hkb:~$ acpi -V
Battery 0: Charging, 32%, charging at zero rate - will never fully charge.
Battery 0: design capacity 5600 mAh, last full capacity 5563 mAh = 99%
Adapter 0: on-line
Thermal 0: ok, 56.0 degrees C
Thermal 0: trip point 0 switches to mode critical at temperature 120.0 degrees C
Cooling 0: Processor 0 of 3
Cooling 1: intel_powerclamp no state information available
Cooling 2: Processor 0 of 3
Cooling 3: x86_pkg_temp no state information available
Cooling 4: Processor 0 of 3
Cooling 5: LCD 9 of 10
Cooling 6: Processor 0 of 3


Code: Select all
hallvor@laptop-hkb:~$ upower -i /org/freedesktop/UPower/devices/battery_BAT0
  native-path:          BAT0
  vendor:               NOTEBOOK
  model:                BAT
  serial:               0001
  power supply:         yes
  updated:              su. 20. sep. 2020 kl. 19.13 +0200 (20 seconds ago)
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               charging
    warning-level:       none
    energy:              19,9134 Wh
    energy-empty:        0 Wh
    energy-full:         61,7493 Wh
    energy-full-design:  62,16 Wh
    energy-rate:         0 W
    voltage:             11,705 V
    percentage:          32%
    capacity:            99,3393%
    technology:          lithium-ion
    icon-name:          'battery-good-charging-symbolic'


Code: Select all
Sep 20 18:16:29 laptop-hkb tlp[1204]: Setting battery charge thresholds...done.
Last edited by Hallvor on 2020-09-21 12:09, edited 1 time in total.
Lenovo ThinkPad T440S, Intel Core i7-4600U CPU @ 2.10GHz, 8 GB RAM, 256 GB SSD, Debian Buster (KDE)
Lenovo ThinkPad X240, Intel Core i5-4300U CPU @ 2.90GHz, 8 GB RAM, 120 GB SSD, Debian Buster (KDE)
User avatar
Hallvor
 
Posts: 1079
Joined: 2009-04-16 18:35
Location: Norway

Re: Laptop battery problem

Postby Head_on_a_Stick » 2020-09-20 18:09

Sounds like the battery is defective but check
Code: Select all
~$ cat /sys/class/power_supply/BAT*/charge_st{art,op}_threshold
49
51
~$

^ I set those on my ThinkPad months ago by using the echo command, I've never had tlp installed and the values persist across different distributions (Debian buster & Alpine Linux edge) and even different operating systems (OpenBSD).
Black Lives Matter

Debian buster-backports ISO image: for new hardware support
User avatar
Head_on_a_Stick
 
Posts: 12609
Joined: 2014-06-01 17:46
Location: /dev/chair

Re: Laptop battery problem

Postby Hallvor » 2020-09-20 19:06

It says no such file or folder.
Lenovo ThinkPad T440S, Intel Core i7-4600U CPU @ 2.10GHz, 8 GB RAM, 256 GB SSD, Debian Buster (KDE)
Lenovo ThinkPad X240, Intel Core i5-4300U CPU @ 2.90GHz, 8 GB RAM, 120 GB SSD, Debian Buster (KDE)
User avatar
Hallvor
 
Posts: 1079
Joined: 2009-04-16 18:35
Location: Norway

Re: Laptop battery problem

Postby sickpig » 2020-09-20 20:42

Code: Select all
tlp recalibrate [BAT0|BAT1]

maybe the above helps?
User avatar
sickpig
 
Posts: 562
Joined: 2019-01-23 10:34

Re: Laptop battery problem

Postby stevepusser » 2020-09-21 01:16

Yup, seems like a defective battery to me, too.

You've ruled out the power adapter as a problem, correct?
MX Linux packager and developer
User avatar
stevepusser
 
Posts: 12057
Joined: 2009-10-06 05:53

Re: Laptop battery problem

Postby sgosnell » 2020-09-21 01:31

I've had far more problems with laptop power supplies than with batteries. I've had several adapters to bad over the years. They look like they're charging, but when I put a meter on the tip, there was almost no current, and the voltage was low. I've learned to always try a new power supply before changing the battery.
Take my advice, I'm not using it.
sgosnell
 
Posts: 838
Joined: 2011-03-14 01:49

Re: Laptop battery problem

Postby Hallvor » 2020-09-21 12:09

Thanks for the input, guys!

A little history about the laptop. It was built by a local company from cheap Chinese components,, but the specs were excellent for the price. Since I got this computer in 2013, both the charger and the motherboard have been replaced once.

I still had the old battery (at 40% capacity), plugged it in, and it was working and charging just fine. No problem with the charger, then.

The battery is being returned.

Marking the thread solved.
Lenovo ThinkPad T440S, Intel Core i7-4600U CPU @ 2.10GHz, 8 GB RAM, 256 GB SSD, Debian Buster (KDE)
Lenovo ThinkPad X240, Intel Core i5-4300U CPU @ 2.90GHz, 8 GB RAM, 120 GB SSD, Debian Buster (KDE)
User avatar
Hallvor
 
Posts: 1079
Joined: 2009-04-16 18:35
Location: Norway


Return to Hardware

Who is online

Users browsing this forum: No registered users and 10 guests

fashionable