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8 Posts

04-07-2021

Belgium

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T480 20L5S1RR00 Does not detect or charge an external battery

2021-04-16, 17:46 PM

Hello,

 

I have three laptops of this series, and for all external batteries of the 01AV 452 type. from 2018/08 are not detected and not charged.
 All drivers are installed and Windows is also updated to the latest version.
I tried many ways to solve this problem.
After some of which the computer sees the battery, it defines it as battery 2, but after a couple of minutes it gives an error and does not charge it. Charging stops at 49%
I made a lot of screenshots.
If there are solutions. Tell me.
Also, if you have an address where I can apply as a private person for laptop repair.  "Belgie " Laptops under warranty,

Were purchased in Denmark

 

Thanks for your answer and help.

 

 

 

 

 

 

 

 

 

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3655 Posts

08-02-2018

United States of America

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Re:T480 20L5S1RR00 Does not detect or charge an external battery

2021-04-16, 19:03 PM

Hi WitPulsar!


Greetings


Have you tried uninstalling the battery driver and restart the computer for the driver to reinstall itself? How about updating the Firmware/BIOS and the Power management driver?

 

You can manually install it from this link: https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t480-type-20l5-20l6/downloads/driver-list/

 

And also, can you send an English version of those photos provided earlier? Thanks

 

 

 

Jwes_Lenovo



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8 Posts

04-07-2021

Belgium

8 Signins

35 Page Views

  • Posts: 8
  • Registered: ‎04-07-2021
  • Location: Belgium
  • Views: 35
  • Message 3 of 4

Re:T480 20L5S1RR00 Does not detect or charge an external battery

2021-04-17, 12:04 PM

Hey,
I have tried everything. Download drivers and reset via the button under notebook + start button. I made several screens.
I think they will give a clear picture of my problem.
On these screens you are going to see that diagnostic program from lenovo sees both baterrys = after 1 minute comes an error message. After reset, computer only sees 24 percent + and starts charging, but only up to 50 percent.
last pictures show that via the site of lenovo -diagnostic sees only a battery + and diagnostic tool sees two + and again wrong.
  I notice that the voltage of the second battery is not correct, only 4 volts
Thanks for your time

 

 

 

 

 

 

 

 

 

 

 

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3655 Posts

08-02-2018

United States of America

790 Signins

18947 Page Views

  • Posts: 3655
  • Registered: ‎08-02-2018
  • Location: United States of America
  • Views: 18947
  • Message 4 of 4

Re:T480 20L5S1RR00 Does not detect or charge an external battery

2021-04-19, 16:05 PM

I see. The issue seems to be a hardware problem already on the 2nd battery. I would suggest you bring it to any of our authorized repair centers in your area for further assistance. Here is the list: https://pcsupport.lenovo.com/be/nl/partnerlocator

 


Jwes_Lenovo



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