Replaced battery in my laptop, as it was not keeping time in CMOS.

[Jim487]

Hi,

I started having time issues when booting my laptop recently.  A battery check showed the battery at end of life, which looked normal, as it was about 3 years old.  I replaced the battery with compatible aftermarket battery, as the original battery was not holding the CMOS time/date correctly.  After replacing the battery, the issue persists.

The laptop will function fine with charged battery and keep the time correctly after shut down for a few days, but if the laptop is left off power for a week or so, the time/date is incorrect again at POST.  At Windows login, the time and date is incorrect and I can reset it in Windows and it stays set again temporarily, but will revert to incorrect time/date if left off power for any meaningful length of time. 

This laptop does not have a separate battery for the CMOS, so it draws power from the power battery itself.

I am looking for suggestions whether there is a fix, or (more likely) an issue with a recent HP BIOS update, or hardware somewhere.

Thanks.

[Nal_NR]

Hi @Jim487,

Welcome to the HP Support Community. 

I'd like to help!

Refer to this document and follow the instructions and see how it goes. 

Hope this helps! Keep me posted for further assistance.
Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

[Jim487]

Hi Elohi,

I have replied to you privately.  The suggestions in the document were appreciated, but unfortunately have not worked.  I am considering rolling back the BIOS, but am not sure that will work.  Please see my private reply.

[Nal_NR]

Hi @Jim487,

Thank you for performing the recommended steps, I see that it has not helped. 

Let's try rolling back the bios and see if that works. Click here

You may also check this Video URL

Hope this helps! Keep me posted for further assistance.
Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!