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Weird Battery Problem-Software or BIOS issue?

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#1 Inside_man


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Posted 03 February 2017 - 05:26 AM

I have a problem with my HP 15-r249tu, window 10 laptop. It needs to be plugged in to start, after that if I unplug, it works, the battery icon show empty, but clicking on it show's 100% battery. 


Earlier I had a different battery issue, when ever I charged the battery and it shows 100%, fully charged, I unplug and the system would shut down. Only after plugging it in, it would restart, then after it would work even when unplugged. SO immediately after charging, on unplugging it would shut down. No problems after pluggin and restarting.


I contacted HP support and the support, did some troubleshotting steps  but did not solve the problem.  


Now I can not start my laptop without plugging in. Also the laptop does not shuts down like before when unplugged. The HP support were of the opinion that battery needs replacement. But I dont agree, as ican use the system for a few hours after unplugging, and the problem started after some times of ungrade to windos 10. (No option of going back to win-7)


My laptop has the old UEFI with no component option, so I will download new UEFI from HP site on a USB and run the test. However I did run the test using the HP assisant yesterday itself, and the result was Charging (67%), Primary battery OK(0). cycle count 197/300, design capacity-1692, full charge capacity-1692, remaining capacity-1125, current-1723


But today running the same test showed Unkown-Primary battery unknown(90), HP battery was unable to access the battery, PLease shut down the PCand reinsert the battery and AC adapter. Please verify that you are using the latest version of HP battery check and the latest BIOS version.   


During my previous communication with HP UEFI test were run and it was also found ok. see below


Model: HP 15 Notebook PC
Serial Number: CND505****
Product ID: L2Z88P****
CSO Number:
Agent ID:
Start Time Type Result Failure ID
------------------- --------------- -------- ---------------------------
2017-01-03 17:29:44 Video Passed NA
2017-01-03 17:28:43 Video Passed NA
2017-01-03 17:27:59 Processor Passed NA
2017-01-03 17:27:06 System Board Passed NA
2017-01-03 17:24:01 Battery Passed NA
2017-01-03 17:07:14 System [E] Canceled NA
2017-01-03 16:53:00 AC Adapter Passed NA
2017-01-03 16:51:54 Battery Passed NA



Recent UEFI results:

UEFI results:


AC adapter-Passed


Battery check: did not progress 1%, waited for 10-15 minutes, but justdid not move beyond initiall 1%, so stopped.


After I restarted, the icon show empty, plugged in but not charging and clicking on it shows battery at 100% fully charged.


I unplugged the system and have been using the laptop for 3 hours and 40 minutes now on battery.


This is not a faulty battery issue, but some software issue.


Kindly find some solution. I have tried to uninstall and reinstall the battery drivers, remove the battery and reinsert it, it works sometimes, but then again the same problem. Every time I need to start the system or re start after shut down it need to be plugged in.


BIOS version/date-Insyde F.40, 7/26/2016

SMBIOS version -2.7


The above BIOS was updated by the HP support, but did not solve the problem. My model laptop on HP site says the lates BIOS is F.40 Rev.A, I am not sure what to do.

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#2 ranchhand_


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Posted 03 February 2017 - 09:44 AM

I suggest that you keep your warranty problem current with HP. As long as your laptop is under warranty it is HP's responsibility; if you let it lapse they will be happy to oblige you. We can attempt this and that on the forum, but if it turns out that it is a mechanical problem with components, and you have allowed the warranty to lapse, you are up a creek without a paddle. Based on my experience with them, they will do their best to hem and haw, wiggle and sniggle, but in the end they must take responsibility. It can be miserable, I admit. I guess you have figured out by now that I am not an HP fan by any means, but that is because I have experienced what they do to get out of warranty responsibility, as well as the experiences of others that have had HP problems on this forum. 

Help Requests: If there is no reply after 3 days I remove the thread from my answer list. For further help PM me.

#3 Kilroy


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Posted 03 February 2017 - 11:22 AM

Just because the battery works, it doesn't mean that it isn't defective.  There is more to the battery than just the cells.  If the battery is still under warranty, usually just one year, I'd have HP replace it.  If the battery is no longer under warranty your options are buy a new battery or live with the problem.

#4 Inside_man

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Posted 03 February 2017 - 12:01 PM

Well its a.....Out of Warranty..laptop, and the funny part is problems start a month after the warranty has lapsed.....seems products are engineered to fail or last a period without problems.


Anyways thanks for the reply.... ranchhand & Kilroy

Edited by Inside_man, 03 February 2017 - 12:03 PM.

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