Battery dies without warning at 50%

[antonio655]

My battery was giving me 4+ hours of charge up until this week. Now the laptop is dying without warning at around 50% remaining. I've run the HP Support Assistant and System Diagnostic tests to see if the battery is defective but both tests rate it as "Ok". 

[Jeet_singh]

Hi @antonio655,

Thank you for visiting the HP Forums! A great place where you can find solutions for your issues with help from the community! I came across your post and wanted to assist you. 

 I read the post regarding requiring assistance the battery shutting down at 50%. I will be delighted to assist you with this.

A stupendous effort, brilliant description and very smart diagnosis of the issue before posting. Kudos to you on that score.

For starters, I would require more information to assist you better.

• Did this happen after a windows or software update? Do you remember?
• Did you run diagnostics on the battery?
• How old is the notebook?
• Have you checked with a different battery if you have one and if this computer’s battery is a removable one?

Please try all the prescribed steps from this link on how to improve battery performance: http://support.hp.com/in-en/document/c01297640

• Video about improving your notebook battery performance
• How long does a notebook battery last?
• Adjusting notebook battery power plans
• Factors that contribute to loss of notebook battery capacity
• Recommended notebook battery care practices
• Original battery charges slowly, replacement battery charges normally
• Special recommendations for embedded (not customer replaceable) notebook batteries
• Tips for conserving notebook battery power

Please follow the steps to uninstall Microsoft ACPI-Compliant Control from Device manager: 

Unplug the charge and use the laptop until the battery drains to 15%.

Turn off the laptop and turn it back on after 30mins.

Reinstalled Microsoft ACPI-Compliant Control Method Battery under device manager,

Restart the computer and the issue should be fixed.

Also, Go through them all and let me know what you have determined is causing the issue. The first document has the most relevant troubleshooting if your battery appears to be not charging.

Also, Go through them all and let me know what you have determined is causing the issue. The first document has the most relevant troubleshooting if your battery appears to be not charging.

I would suggest please update the Bios and Chipset drivers on your PC from our HP support website, using this link: http://hp.com/drivers Select the country and language. Enter the product# and follow the on-screen instructions.

Also, download and install HP support assistant on your PC. It should automatically download and install the latest updates and drivers for your PC.

Refer this link to know how to use HP support assistant.

Battery Does not Power Notebook or Hold a Charge

HP Notebook PCs - Testing and Calibrating the Battery (Windows 10)  

Next thing, I would suggest here is to run the test on the battery from F2.(Click on Component test - Scroll down to Power)

Please remember to capture the failure ID for further assistance.

For further assistance please follow this thread: Click here  on HP forums which is authored by an HP Support Agent and accepted as a solution. This should do the trick for you.

Please respond to this post with the result of your troubleshooting. I look forward to hearing from you. 

If you wish to help others looking for the same solution as you've found, mark the post as Accepted Solution.

If you wish to show appreciation for my effort, please click the Thumbs up icon at the bottom of my comment.

And I Hope you have a good day, Ahead.

Regards,