Battery not present

Hello! I have a HP elitebook 8440p. The battery meter indicates that my #2 battery is not present and when I unplug my computer is shut off.  I tried to take out the battery and replacing but that has not worked.  I read that re-installation of compatible microsoft ACPI control method battery can help but I didn't know if that applied to my situation.  Can someone help me?

Hello amj205. I understand that your battery is not detected. Is this correct?

I believe uninstalling the driver ACPI is a good place to start. I combined this relocation with a hard reset, so be sure to follow these steps exactly.

  1. Open (with power sector and battery) Device Manager.
  2. Expand the section of the battery.
  3. Uninstall all listed here compenants.
  4. Shut down the laptop.
  5. Remove the battery and AC power.
  6. Press and hold the power button / stop for a minute.
  7. Replace the battery ONLY.
  8. Start Notepad and allow Windows to reinstall the drivers.
  9. Check that this action has resolved the problem and display the result.

Let me know the result. I hope you have a great rest of the day!

Tags: Notebooks

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