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‎02-10-2022 01:23 PM

HP Recommended
Operating System: Microsoft Windows 7 (32-bit)

The HP Probook 4520s CMOS battery needs to be replaced - where is it and how do I replace it? Thanks

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2 people had the same question
2 REPLIES 2

‎02-10-2022 01:31 PM

HP Recommended

RTC battery 449137-001

 

See p. 96-97 of the Service Manual here:

 

Manual 

 

The battery is a CR2032 you can probably buy at CVS with the hearing aid batteries. It's a bit of a slog to get to, but the Manual will take you through it. Good luck. 

 

Please accept as solution if this is the info you needed. 

2 people found this reply helpful
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‎02-10-2022 01:46 PM

HP Recommended

I saw the manual - I guess I did not get down into the weeds far enough to see the procedure.  This is not my machine - I'll have to ask if they REALLY wand it back (I am not a pro, but willing to try) as I may have too many pieces left over.  Thanks for pointing me in the right direction.

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