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‎07-04-2020 11:11 AM

HP Recommended
Product: Spectre x360 13-4005dx
Operating System: Microsoft Windows 10 (64-bit)

I keep getting CMOS checksum errors when rebooting after my laptop battery is completely drained. I recently replaced the main laptop battery, and that seems to be working fine. I suspect I need to replace the CMOS/RTC battery, but I can't find the part or model number for the RTC battery anywhere. There seem to be a variety of similar batteries available online, and I want to make sure I order the correct one. Many thanks!

3 people had the same question
1 REPLY 1

‎07-04-2020 02:21 PM

HP Recommended
@ceb51 wrote:

... I recently replaced the main laptop battery, and that seems to be working fine. I suspect I need to replace the CMOS/RTC battery, but I can't find the part or model number for the RTC battery anywhere. ...

@ceb51 

 

I think it uses main battery for CMOS chip. Its parts list does not shows CMOS/RTC battery at all

 

       https://partsurfer.hp.com/Search.aspx?searchText=L0Q52UA

 

nor manual

       http://h10032.www1.hp.com/ctg/Manual/c04807803.pdf

 

Regards.

BH
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