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Battery calibration without AC adapter

HP Recommended
Microsoft Windows 10 (64-bit)

Hello ! 


So basicly I runned HP PC Hardware Diagnostics Windows at boot

and for Battery Testing, it resulted in :


AC adapter test:

      AC adapter not detected, so test cannot be performed

Battery Test :
      Primary - Calibration Required (21)
      Logic state: No mains supply (21), Load state - Not available
     (I specify here that the AC adapter was plugged in)


What can I do ? It seems like I need to calibrate my battery so I can use back the AC adapter, but to do so, I need the AC adapter

Do you have any leads that might explain this problem?

HP Support Agent
HP Support Agent
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HP Recommended



I reviewed your post and I understand that the battery is not getting charged when the computer is powered on.


Don’t worry, I assure you I will try my best to get this sorted.


Have you tested with an alternate adapter?


I recommend you contact support and they will assist you in this regard.


Here is how you can get in touch with support.


1)Click on this link –

2)Select the product type.

3)Enter the serial number of your device or select let HP detect your product option.

4)Select the country from the drop-down.

5)You should see the HP phone support number or Chat option listed.


Let me know how it goes and you have a great day!


P.S: Welcome to the HP Support Community 😊


If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!



Stay Home – Stay Safe

I am an HP Employee

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