⟐ Answered September 19, 2024 at 1:29 MST

⟐ Answer edited February 16, 2026 at 17:01 MST

⟐ Answer edited February 29, 2020 at 9:18 MST

Red power light does not come on.

Worked perfectly 3 weeks ago.

⟐ Commented May 03, 2024 at 11:00 MST

⟐ Answer accepted November 30, 2024 at 13:39 MST

⟐ Answer edited January 20, 2024 at 22:02 MST

⟐ Answer edited October 27, 2022 at 18:42 MST

Removed battery devices and rebooted; they came back but battery not recognized.

Held down the reset button on the bottom of the laptop for 30 sec.

Removed external battery and power and held power button down for 30 sec to de-energize.

Any ideas?

Thanks,

Bob

⟐ Answer accepted June 10, 2026 at 12:48 MST

⟐ Commented January 09, 2026 at 20:32 MST

My laptop: P1 Gen 3 (type 20TH) Laptop (ThinkPad)

The laptop battery will not charge and slowly depletes, but continues to work just fine plugged in.

I have tried the following

• Two different thin port chargers (both work)
• USB-C charger (works)
• Replaced the battery (didn't make a difference)
• Reinstalled battery drivers (no change).
• Removing the battery, made no change.
• The charging light near the thin plug is amber, indicating that the laptop is charging
• In the system tray, the battery status is "plugged in" and if I click the icon the status is "charging"
• In Lenovo vantage the battery status is "charging".
• In battery report: status is "AC - active" when plugging in and status is "Battery - active" when on battery power alone. There are two instances where status is "connected - standby" as well.

Browsing the forums, I think this is the issue. The P1 Gen 3 is not listed under supported models, yet it was pushed on Lenovo vantage. I did a BIOS update on September 11, 2025 and since then my battery has not worked. I called support, and was told to try a replacement battery and a different charger. As you can see from above, I've done that, so this is currently the most likely culprit

BIOS flashbacks seem to be risky, will there be an updated BIOS that will correct this issue? What are my options to convert my laptop sized desktop into a laptop again?

https://forums.lenovo.com/t5/ThinkPad-P-...

Notably this BIOS update was specifically to address a Battery issue for other Lenovo products, but was rolled out on Vantage for my unsupported P1 it looks like.

https://download.lenovo.com/pccbbs/mobil...

Currently, I cannot even perform updates as both of my laptop batteries are below 25%, so I can't even do a flashback if I wanted to. Is there a product or service to charge these batteries externally? Or is there a way to get the computer to accept updates only on plug in power?

Update

Talked with Lenovo support, successfully reflashed my bios to the previous version, and did a fresh windows install. Notably the battery firmware update is not compatible with lenovo P1 Gen 3, at least in the documentation, despite it being a recommended update through Vantage. At a minimum there appears to be some issue with documentation as both this driver and the BIOS update were recommended by Vantage and upon reading the documentation a P1 gen 3 is not listed as a supported device.

The battery charging icon now appears for only 10 seconds after restarting the laptop, and then will not charge. No other changes.

⟐ Edited October 04, 2025 at 1:38 MST

The charging issue doesn’t happen very frequently, but it still bothers me a lot. I went to my local Lenovo Service Center and they just reinstalled the Windows system again and again... Each installation can make the issue disappear for maybe some days, and then can’t charge again.

My P71 works really fine except this issue, so I really hope to fix that. Any ideas would be greatly appreciated! Thanks.

⟐ Answer accepted August 11, 2025 at 11:18 MST

⟐ Commented January 31, 2025 at 7:55 MST

I used the laptop at school so it was under some pressure in my backpack, I'm thinking it's the bezel sheet that I should replace, am I correct or is it something else? Btw I did all the tests I could and it is certainly not a software problem, but definitely something on the hardware level.

Here's a pic of the problem.

https://ibb.co/9pH0nBR

The stains go away for a moment when I try to "massage" them.

I already tried the warranty route, but due to some circumstances it's out of question.

Thanks in advance.

⟐ Edited August 20, 2024 at 14:52 MST

I ordered a new battery popped it in but the laptop still gives the error about battery not being detected. During the first boot laptop stayed on for hours but kept showing 100% charge even when disconnected. I tried turning on my laptop the next day and it's doing the same thing. Won't turn on without power cord connected and dies out instant when power removed.

I can't figure out what's going on. Any help please

⟐ Answered August 18, 2024 at 10:58 MST

⟐ Answer edited December 15, 2023 at 1:21 MST

⟐ Answered September 13, 2023 at 5:05 MST

⟐ Commented September 02, 2023 at 15:05 MST

⟐ Answer accepted August 08, 2023 at 3:32 MST

⟐ Answered July 27, 2023 at 4:27 MST

⟐ Answer deleted December 10, 2021 at 6:42 MST