• ×
    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

Featured blog article:

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?

‎10-04-2026 06:30 AM

HP Recommended
Operating System: Microsoft Windows 11

Hello,

My HP OmniBook 3 16-by0020ns (16" 2K, AMD Ryzen 7, 24 GB RAM, 1 TB SSD, Radeon 680M, 41 Wh battery) loses between 18% and 20% of its charge in 24 hours when completely powered off (about 0.2-0.3 W). It has only 14 days of use.

Test conditions: Shift + Shut down (Fast Startup disabled), charger and all peripherals disconnected, and all wake-up, lid-open and USB charging options disabled in the BIOS.

Measurements:
- 100% to 84% in 19 hours.
- About 11% in 20 hours.
- About 10% in 17 hours.
- After recalibrating the battery (full discharge and recharge), with the lid closed: 32,636 mWh (80%) to 30,498 mWh (74%) in about 10 hours. The drain rate did not improve after the calibration.
- The Windows battery report shows the same pattern. For example, a Shutdown session on 2026-10-01 went from 32,636 to 28,541 mWh, with the full charge capacity unchanged at 41,040 mWh.

What I have already checked:
- powercfg /batteryreport shows the laptop as Suspended with no wake-ups in between, and powercfg /waketimers shows no timers.
- HP PC Hardware Diagnostics battery test: status OK, 100% capacity (41.04 Wh) and 7 cycles.
- Hard reset (after which the BIOS showed a one-time "CMOS checksum invalid / CMOS Reset (502)" message), Windows updated, and a full discharge and recharge (manual calibration).
- The BIOS is on the latest version available: F.04 (04/22/2026).

Other owners of the same hardware (HP OmniBook 3 16-by0027ns, Ryzen 7 7735U) report the same problem in retailer reviews, even with all BIOS options disabled.

My questions:
1. Is this a known issue on the OmniBook 3 16-by0xxx series?
2. Is there a BIOS or embedded controller firmware update, or an official procedure, that fixes it?
3. If not, I would like to request warranty service (a replacement unit).

Thank you.

Category:
Reply
3 REPLIES 3

‎10-05-2026 10:42 AM

HP Recommended

Hi @Quevedo0,

 

Welcome to the HP Support Community!

 

Since you have already checked the battery health, calibrated the battery, updated Windows, and confirmed the BIOS is current, let's try a couple of basic checks:

1. Restore BIOS defaults.

Shut down the notebook.

Turn it on and repeatedly press F10 to enter BIOS Setup.

Select Load/Restore Setup Defaults or the equivalent option.

Save the changes and exit BIOS.

Shut down the notebook normally and leave it disconnected from AC for several hours.

Check whether the battery percentage still drops significantly while powered off.

HP recommends restoring BIOS defaults as a battery troubleshooting step. 

2. Check for connected devices.

Before shutting down, disconnect all USB devices, SD cards, docks, external displays, and other accessories. Then perform a normal shutdown and leave the notebook disconnected from AC.

After several hours, check the battery percentage again.

3. Compare one controlled shutdown

Charge the battery to around 80–100%, shut down normally, disconnect the charger and all accessories, and leave it untouched for approximately 8–12 hours. Record the percentage before and after.

 

If the battery continues to lose a significant amount of charge while the notebook is completely powered off, please let us know the result.

 

Best regards,
Kuroi_Kenshi

I'm an HP Employee.


If this reply helped resolve your issue, please select the Accept as Solution as it helps others in the community quickly find the answer they’re looking for.


And if you found this reply helpful, clicking Yes below is a great way to let us know we’re providing the support you need, as it encourages us to keep improving and sharing helpful guidance.

Reply
Was this reply helpful? Yes No

‎10-05-2026 04:12 PM

HP Recommended

I have tried all three recommendations and nothing worked.

This last time, I managed to only lose 10 percent of battery in 17 hours, which is the best reading I have obtained so far.

Reply
Was this reply helpful? Yes No

‎10-08-2026 02:36 AM

HP Recommended

Hi @Quevedo0,

 

Thank you for testing all three recommendations and for providing the latest result.

 

A 10% loss over 17 hours is better than the earlier measurements. Since you have already completed the BIOS reset, disconnected all peripherals, performed a controlled shutdown test, calibrated the battery, updated Windows, and confirmed that the battery diagnostics pass, I don't recommend repeating those steps.

 

At this point, I recommend having the notebook checked by an HP-authorized service center. 

 

You can locate the nearest HP service center using our Service Center Locator:​

 

🔗 HP Service Center Locator

 

If you need further assistance or have any questions, please don't hesitate to contact us.​

 

 

Kuroi_Kenshi

Best Regards,

I'm an HP Employee.


If this reply helped resolve your issue, please select the Accept as Solution as it helps others in the community quickly find the answer they’re looking for.


And if you found this reply helpful, clicking Yes below is a great way to let us know we’re providing the support you need, as it encourages us to keep improving and sharing helpful guidance.

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>.
-->