Battery discharge rate not updating

[roodolph]

Product name: Pavilion 15 eg0000nl
Product number: 2U6D5EA

1. Problem description:
Brand new laptop, four days old. When switching it on for the first time I noticed that battery discharge percentage was stuck at 100%; it eventually dropped to 93% when I launched HP Support Assistant to register my product. As long as HP Support Assistant was still running, battery discharge percentage kept dropping somehow regularly; when i closed HP Support Assistant, battery discharge percentage got stuck at around 88% and it did not change. When I set battery performance to the lowest level (save energy), battery discharge percentage got updated with actual battery level and dropped to 74%, but then it was stuck again at this rate. I kept using my laptopt on energy save mode but it did not update; when I switched to an higher battery performance level it was still stuck, but it updated when I adjusted it again on save energy mode. So, battery discharge rate won't update until I switch battery performance to save energy mode, but then it is stuck again. While charging, battery level updates constantly and regularly.

2. What I already did trying to fix this problem:
2.1. Update every single driver from HP.
2.2. Update Windows.
2.3. Uninstall AC and ACPI drivers; install them again; reboot. Uninstall AC and ACPI drivers, reboot.
2.4. Check battery from HP Support Assistant: battery is OK, full charce capacity up to 99%.
2.5. Check battery from HP PC Hardware Diagnostics: battery is OK, full charge capacity up to99%.
2.6. Check battery from BIOS: battery is OK.
2.7. Bios Update to latest version.
2.8. Change battery options and energy options in BIOS.
2.9. Restore BIOS settings to default.
2.10. Restore BIOS to default version.
2.11. Restore system to factory settings.
2.12 Calibrate battery.

None of them actually worked. Is there anything else that could be done?

I wish battery could work properly because this is a very fine notebook.

[Echo_Lake]

@roodolph

Thank you for posting on the HP Support Community.
 

Don't worry as I'll be glad to help, 

I appreciate your efforts to try and resolve the issue. This sounds like battery related issue and in order to fix this issue,  your computer needs to be serviced.  As we have limited support boundaries in the support community as of now. 

I would request you to reach out to our Support and our Support Engineers should be able to check the available service options in order to diagnose the computer physically.  HP Support can be reached by clicking on the following link:  www.hp.com/contacthp/​​​​​​​

Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

[roodolph]

Thanks for your answer, I appreciate it. 
Before contacting HP Support, I decided to run a last test. I let the system run indefinitely in order to see how battery would behave on its own, and this time it actually dropped in an inconstant and unpredictable way, following these rates (approximately): 100 - 94 - 85 - 78 - 74 - 66 - 60. After a while I turned off my laptop. When I turned it on again battery percentage was up to 58%, and it showed a coherent rate if compared to the last one. Then it kept dropping in a similiar way: 57 - 50 - 47 - 43 - 30, which was the percentage i set for energy save mode, and the system regularly notified it in the right moment. So, I remember reading in this community another discussion about battery dropping; following it, I was wondering if this is the way new batteries behave, even in my case.

[Echo_Lake · Accepted solution]

@roodolph

Thank you for posting back.

As you've performed all the relevant troubleshooting steps and the issue persists this sounds like battery related issue. 

I would request you to reach out to our Support and our Support Engineers should be able to check the available service options in order to diagnose the computer physically.  HP Support can be reached by clicking on the following link:  www.hp.com/contacthp/​​​​​​​
 

Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.