HP Support Assistant does not recognize the Battery

[ber999]

HP Support Assistant does not recognize the Battery.

However, Battery works.

[ber999]

I addition you find a screenshot of the HP PC Hardware Diagnostics accumulator technical Data section below.

1. 

[Hawks_Eye]

Hi @ber999 

Welcome to the HP Support Community! We're here to help you get back up and running.

Thank you for sharing that, and I’m truly sorry you’re facing this frustrating battery issue. When your HP Pavilion 17-ab403ng reports “Battery Unknown,” even after diagnostics show the battery is functioning, it can feel like the system is speaking in riddles. 

Let’s walk through a few steps that can help bring clarity and restore proper battery recognition:

 

Step-by-Step Actions to Resolve “Battery Unknown” Status

Perform a Hard Reset
This clears temporary memory and forces the system to re-detect hardware components:

• Shut down the laptop.
• Unplug the power adapter and remove the battery (if removable).
• Press and hold the power button for 15 seconds.
• Reinsert the battery and reconnect the power adapter.
• Power on the device and check battery status.

Restore BIOS Defaults
Resetting BIOS settings can correct miscommunication between firmware and hardware:

• Restart the laptop and press Esc or F10 repeatedly to enter BIOS.
• Navigate to Exit > Load Setup Defaults.
• Save changes and exit.

Update BIOS and Chipset Drivers
Outdated firmware can prevent proper battery detection. Use the official HP support page to install the latest updates:
HP Pavilion 17-ab403ng Drivers & BIOS

Run HP PC Hardware Diagnostics (Windows)
Even if the battery test shows “OK,” running a full system scan can help identify inconsistencies:

• Download and install from: HP PC Hardware Diagnostics

Uninstall and Reinstall Battery Drivers

• Open Device Manager (Windows + X > Device Manager).
• Expand Batteries.
• Right-click Microsoft ACPI-Compliant Control Method Battery and choose Uninstall.
• Restart the laptop to reinstall the driver automatically.

Check Battery Health and Compatibility
If you’ve replaced the battery, ensure it matches the original specifications. For your model, the compatible part number is typically 756743-001 (4-cell, 41 WHr). You can verify this in the HP Parts Store.

Let’s get your system back to full strength.

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Take care, and have an amazing day!

Regards, 

Hawks_Eye