• ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines
Here is the solution to resolve for 5 Long and 3 Short Blinks on your HP Laptop Click here to view the instructions!
Common problems for Battery
We would like to share some of the most frequently asked questions about: Battery Reports, Hold a charge, Test and Calibrating Battery . Check out this link: Is your notebook plugged in and not charging?

‎07-01-2025 12:17 AM

HP Recommended
Product: HP Notebook 15-da1051tu
Operating System: Microsoft Windows 11

Hi I have a HP Laptop bought in 2022 that on start up tells me there is a problem with the BIOS Battery can someone tell me what replacement BIOS battery I need to get so I can replace it when I upgrade my RAMM in the next week.  Regards, Ian.

Reply
1 ACCEPTED SOLUTION

Accepted Solutions

‎07-01-2025 06:50 AM

HP Recommended

Hi, Ian:

 

Your notebook does not have a BIOS battery also known as a Real Time Clock (RTC) or CMOS battery.

 

The main internal battery also serves as the RTC battery to maintain the BIOS and system clock settings.

 

Below is the link to the service manual:

 

HP 15 Laptop PC Maintenance and Service Guide

 

Chapter 3 has the list of parts.

 

You will not find a RTC or CMOS battery part number.

 

Chapter 6 has the component removal and replacement procedures.

 

You will not find a RTC/CMOS battery removal and replacement procedure.

View solution in original post

Reply
1 person found this reply helpful
Was this reply helpful? Yes No
3 REPLIES 3

‎07-01-2025 06:50 AM

HP Recommended

Hi, Ian:

 

Your notebook does not have a BIOS battery also known as a Real Time Clock (RTC) or CMOS battery.

 

The main internal battery also serves as the RTC battery to maintain the BIOS and system clock settings.

 

Below is the link to the service manual:

 

HP 15 Laptop PC Maintenance and Service Guide

 

Chapter 3 has the list of parts.

 

You will not find a RTC or CMOS battery part number.

 

Chapter 6 has the component removal and replacement procedures.

 

You will not find a RTC/CMOS battery removal and replacement procedure.

Reply
1 person found this reply helpful
Was this reply helpful? Yes No

‎07-02-2025 01:07 AM

HP Recommended

Thank you .  Regards, Ian.

Reply
Was this reply helpful? Yes No

‎07-02-2025 06:15 AM

HP Recommended

You're very welcome, Ian.

Reply
Was this reply helpful? Yes No
Warning
Be alert for scammers posting fake support phone numbers and/or email addresses on the community.
If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
Didn't find what you were looking for? Ask the community
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.