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amj205 Top Student
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Hi! I have an HP elitebook 8440p. The battery meter says that my battery #2 is not present and when i unplug my computer is shuts off.  I've tried taking out the battery and replacing but that hasn't worked.  I read that re-installing the microsoft ACPI-Compliant control method battery may help but I wasn't sure if that applied to my situation.  Can anyone help me?

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

I do believe uninstalling the ACPI driver is a good place to begin. I combined this reinstallation with a hard reset so make sure to perform these steps exactly.

  1. Open Device Manager (with both AC power and battery connected).
  2. Expand the battery section.
  3. Uninstall all compenants listed here.
  4. Shut down the notebook.
  5. Remove battery and AC power.
  6. Press and hold power button for one full minute.
  7. Replace battery ONLY.
  8. Boot the notebook and allow Windows to reinstall the drivers.
  9. Verify that this resolves the issue and post the result.


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

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amj205 Top Student
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It's back to normal! Thanks so much!
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Hello again amj205.  I am glad to hear that this resolved your issue.  Also, thanks for marking the post as solved.  This makes it easier for other users to find solutions to their problems.

You have a great rest of the week 🙂

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brettsky64 Honor Student
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Hi I have the same problem where the battery reads 100% but it is not recognised once power cord is unplugged. My computer is a HP Pavilion zd8000,

How do I fix this problem on my laptop please

 

Kindest regards

Brett

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Hello Brett,

 

Please take a look at this document, which has links to several scenario's regarding the battery.  A couple of different ones sounded like they may help, so I'm sending them all to you instead of one specific one.

 

Try the Battery does not power notebook or hold a charge document first. 

 

Please let me know if this helps.


Good luck!

 

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Sajjid_atta Student
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I have also same issue & I have a question..........Is there any need of any CD softwere to reinstall the battery Softweres or windows will automatically install it?

KINDLY REPLY ANYONE....

 

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Gideon1 Honor Student
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i bought an hp elitebook 8460p,when i click on de battery i see battery #1 charging and battery #2 not present.what do i do.
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Gideon1 Honor Student
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my hp elitebook i5 keyboard other keys apart from my letter keys have changed,so can i change de keyboard settings to get all de actual keys when pressed.
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@Gideon1

 

Do you have this battery attached???

 

54241ca9f07a9_324543b[1].jpg

 

 

hp-6930p-batt_g3#2.jpg

 

That is the second battery.

 

REO

If you need further assistance please start a new post as I no longer will be a part of the HP Support Community.
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