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02-05-2020

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Thinkpad T490 battery drain after bios update on Windows 10 (1909 - 18363.592)

2020-02-05, 9:32 AM

Hi,

 

I have Thinkpad T490 and few weeks ago I reinstalled windows and updated bios using Lenovo Ventige to version  (currently showing 1.60). I suspect that this update caused some issues with the battery (I can't connect this problem to anything else). Suddenly battery started to drain very fast and currently holds the charge for about 2 hours on full charge. Before it was on average 4 hours or more. I tried battery recalibration from Lenovo Ventige but nothing changed. Anyone having the same issue or any ideas how to fix it?

 

Thanks

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02-06-2020

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Re: Thinkpad T490 battery drain after bios update on Windows 10 (1909 - 18363.592)

2020-02-06, 7:38 AM
this is my recent post:
https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/T440p-My-new-battery-discharges-incredibly-fast/td-p/4641514

I think I had to update the bios around the same time i changed battery. I might have the same trouble as yours.

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Re: Thinkpad T490 battery drain after bios update on Windows 10 (1909 - 18363.592)

2020-02-10, 14:46 PM

I downgraded bios and did battery reset via Lenovo Ventage - no effect, I switched to different browser (as browser is the biggest battery consumer according to battery stats), at some point it seemed that helped (finally showed more than 3 hours in the remaining battery life) but soon returned back and on full charge shows 2 hours 10 minutes :( So far I ran out of ideas

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