hp pavilion laptop p4a28ae - ab150

[johnw12345]

Upgraded to win11 (from win10) - now the battery is not correctly detected.  Tried a few things and also no bios update is available on the hp site. This is  (typically the processor only supports win 10) specifically down to the win11 upgrade.  Battery states 2% charge and never moves off that. Unplug cable and it dies. The hp support tool does not detect it though the win battery report does. Uninstalled and disabled from device manager. No joy with the few things I have done.  Need some specific advice please from those who have seen the same. Thanks in advance!

[Gaya1239]

Hi @johnw12345,

Welcome to The HP Support Community.  

Thank you for posting your query, I will be glad to help you.

I understand you are facing the battery issue you're experiencing with your HP Pavilion laptop (model P4A28AE-ab150) after upgrading to Windows 11 is likely due to a compatibility issue with the hardware and drivers, as you noted that this processor was primarily designed for Windows 10. 

Here's a step-by-step troubleshooting guide:

Let's try the below Troubleshoots steps. 

1.    Turn off the Unit.

2.    Disconnect the AC adapter.

3.    Remove any discs from the disc drive.

4.    Remove memory cards from the card reader slot.

5.    Disconnect all nonessential peripheral devices, such as printers, scanners, external hard drives, and USB flash drives.

6.    Disconnect the AC adapter press and hold the power button for approximately 15 seconds.

7.    Reconnect the AC adapter, and then turn on the computer.

Step 2

Turn off the unit and please press and hold the Windows key + letter B key and the power button together for 30 seconds after 30 seconds, 1st release the power button but keep holding the Windows key and B key for ten more seconds and then release these two keys If done correctly, you will see the display flashing once. Please attempt it thrice as this step and Restart the unit

Step3

The unit has to be turned off, Press Win+ V while holding these two keys then Press the Power button, continue to hold all three keys for 30 seconds and then release the Power button first and then release these two keys Please attempt it thrice  and then you may get a Pop-Up CMOS Check and it will restart the unit 

Even if you don't get a Pop-up restart the unit manually after 3 attempts.
 1. Reset Battery Management System (BMS)

• Steps:
  1. Shut down the laptop.
  2. Unplug the charger and remove the battery (if removable).
  3. Press and hold the power button for 15-30 seconds to drain any residual charge.
  4. Reinsert the battery and connect the charger.
  5. Turn on the laptop and check the battery status.

2. Run HP Hardware Diagnostics HP PCs - Testing for hardware failures

• Use the built-in diagnostics tool to test the battery.
  • Steps:
    1. Turn off the laptop.
    2. Turn it back on and press Esc repeatedly, then press F2 to enter the HP Diagnostics tool.
    3. Run a battery test.
  • Check if it reports the battery as faulty.

3. Install Microsoft ACPI-Compliant Battery Drivers

• The ACPI battery driver manages the interface between the operating system and the battery hardware. It might have been affected during the upgrade.
  • Steps:
    1. Open Device Manager (Win + X > Device Manager).
    2. Expand Batteries.
    3. Right-click Microsoft ACPI-Compliant Control Method Battery and select Uninstall device.
    4. Restart the laptop. Windows will reinstall the driver automatically.

4. Update Chipset and Power Management Drivers

• Even if HP doesn't list Windows 11 drivers, you can try:
  • Steps:
    1. Download Windows 10 chipset and power management drivers from the HP support page for your laptop.
    2. Install them manually in compatibility mode:
       • Right-click the downloaded file > Properties > Compatibility tab.
       • Check Run this program in compatibility mode for Windows 10.
    3. Restart and check the battery status.

5. Battery Calibration

• The battery gauge may need recalibration.
  • Steps:
    1. Charge the battery to 100% (even if it falsely shows 2%).
    2. Disconnect the charger and let the laptop run until it shuts down.
    3. Reconnect the charger and charge it fully again without turning it on.
    4. Turn on the laptop and check the battery level.

6. Test with an External Battery

• If possible, borrow a compatible battery to test whether the issue lies with the battery hardware itself.

7. Rollback to Windows 10

• If none of the above works and you determine the issue is strictly tied to the Windows 11 upgrade, consider rolling back to Windows 10.
  • Steps:
    1. Go to Settings > System > Recovery.
    2. Use the rollback feature (if still available).

8. Replace the Battery

• If diagnostics indicate that the battery is faulty, replace it with an original HP battery.

Refer to this document:   HP Notebook PCs - The battery does not power the notebook or hold a charge

I hope this helps. 

Take care and have a good day.

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!

[johnw12345]

Thanks for the reply. Step 2 does not seem to do much. The windows plus power & B. The laptop holds no power at all so not sure if that affects it. I think perhaps a new battery is in order unless there are more suggestions. Thanks again !

[Gaya1239]

Hi @johnw12345 ,

Thank you for your response, I appreciate your efforts. As the issue persists, I am sorry to hear that I'm sending out a private message to assist you with the next course of action. 

Please check your Private message icon on the upper right corner of your HP Community profile Next, to your profile Name, you should see a little blue envelope, please click on it or simply click on this link.

I hope this helps! Keep me posted for further assistance.

Please click “Accept as 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!