How to replace CMOS battery on my ThinkPad X1 2nd gen?
And what is the part number?
According to the ThinkPad X1 Carbon (Type 20A7, 20A8) documentation, the part number for the CMOS battery is 04X0443.
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:
Here is how to remove the system board to get to the CMOS battery:
Here is how to remove the CMOS battery:
Here is how to replace the CMOS battery:
To reassemble the computer, just perform all the disassembly steps in reverse.
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