How to replace CMOS battery on my ThinkPad X1 2nd gen?

As far as replacing the battery, Lenovo has bite-sized tutorials that cover every step of the process. As you disassemble the computer, remember to keep all the parts organized so that reassembly will easier!

Here is how to remove the base cover of the device:

https://download.lenovo.com/lts/RTPW1240...

Here is how to remove the system board to get to the CMOS battery:

https://download.lenovo.com/lts/RTPW1240...

Here is how to remove the CMOS battery:

https://download.lenovo.com/lts/RTPW1240...

Here is how to replace the CMOS battery:

https://download.lenovo.com/lts/RTPW1240...

To reassemble the computer, just perform all the disassembly steps in reverse.

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Splitted videos are painful. And we should find the part number here. So this page is only partly helpful.

Thierry de Coulon 의 2021년 10월 26일

Very good guide! Thanks

Pablo Ferreiro 의 2024년 4월 26일

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jayeff @jayeff 평판: 521.2k 11 398 1.5k · Answer 2 · 2021-10-26T01:29:34-07:00

jayeff @jayeff

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Hi @tcoulon

Here's the hardware maintenance manual for the laptop.

Go to p.66-68 to view the necessary pre-requisite steps and then the procedure to remove the coin cell battery from the laptop.

Here's a link to the parts for the laptop. Click on Select Commodity > CMOS battery (1) to find the part number - 04X0443

Search online using the part number only, to get results for suppliers of the part that suit you best.

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Lenovo ThinkPad X1 Carbon 2nd Gen

How to replace CMOS battery on my ThinkPad X1 2nd gen?

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