battery percentage not correct

[amangupta99]

I have HP notebook 15. While charging, when my battery is completely charge(so says the system),when i disconnect the battery indicator shows bateery as 97 or 96%. when i connect the charger again it shows 100%.

[DavidSMP]

Hi @amangupta99,

Good Day.  Thank you for posting your query in the HP community.  I read the post regarding issues with the battery not showing the correct percentage of charge. I will be delighted to assist you here.

Superb description and spectacular troubleshooting and commendable diagnosis of the issue before posting. Kudos to you for that. 🙂

For better clarity and to assist you better I would require more information regarding this:

• Did you update the bios and chipset drivers?
• Did you run diagnostics on the battery?
• Please let me know the complete model# of the computer to assist you better.

For now please try these steps:

Please uninstall the ACPI battery drivers from device manager by following these steps:

• Right-Click on start button> click device manager> expand Batteries>then select all the drivers including the ACPI drivers and uninstall it one at a time. Then restart the computer and check again.

• If it does not get resolved, then calibrate the battery and restore the power plan to defaults. Link to calibrate the battery and restore power plan to defaults: http://hp.care/2syuGOs

  Then update the bios and chipset drivers from this link http://hp.care/2syreDe and follow the on-screen instructions. Check if it gets fixed. This should do the trick for you.

• For further assistance, please follow all the relevant steps that match your current issue from this link: http://hp.care/2syheXK
• Also, make a note of any failure code for a failed component like the battery or adapter (charger)
• Please re-calibrate the battery as well from this link: http://hp.care/2symZV5

Please check this link out to improve battery performance. There is an associated video included as well. Link HP Notebook PCs - Improving Battery Performance (Windows 10, 8, 7):http://hp.care/2syuGOs

Please perform all these steps patiently as it is critical to resolving the issue.

It is more than likely that it is the battery and not the actual computer. 

Hope this helps. Let me know how it goes. To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as“Accepted Solution” as it will help several others with the same issue to get it resolved without hassles. 

Take care and have a blessed week ahead.