Create an account on the HP Community to personalize your profile and ask a question
09-23-2021 09:26 PM - edited 09-23-2021 09:28 PM
Had a small query.
My HP Pavilion 14 (14-ac100ne) has been lately facing a vague problem. I use Windows 10 Pro 21H1 and my laptop shuts itself down without any warning at 70% or 50% battery. I have also noticed that the battery charge percentage upon reboot after such a shutdown and plugging in an AC Adapter, shows charge percentage of 70%+,but it fails to power itself on without the AC Adapter. It also stops charging automatically at 87 or 90 percent charge. The same battery used to give me decent backups of up to 4 hours two weeks prior. Kindly suggest a resolution to this issue on a top priority basis since this it is extremely frustrating to lose all unsaved documents.
09-26-2021 08:29 AM
Welcome to the HP Support Community!
I understand that you have an HP (Pavilion 14- ac100ne)and the battery charges till 70% and then stops. You've done a remarkable job performing the steps.
Did any software changes or updates happen on your laptop after which the battery stopped charging at 70%?
While you respond to that, I recommend you to perform the following steps to isolate the issue and arrive at a fix:
NOTE: You may skip any steps that have been performed by you already.
- Power off the laptop.
- Remove the battery out. If the battery is integrated and does not have a latch to release it then leave the battery inside the laptop.
- Disconnected AC adapter from the laptop.
- Press and hold the power button for 15 seconds.
- Reconnect the battery and plug the AC adapter.
- Power ON the laptop.
Now let us uninstall the battery drivers and reinstall them. The following steps will help:
- Open the device manager.
- Expand "Batteries". Right click on the ACPI battery drivers and select uninstall. If there are multiple entries of the ACPI battery drivers then uninstall them all.
- Close the device manager.Restart the laptop.
- The Windows operating system will reinstall the battery drivers while restarting.
It is a good idea to download and run a BIOS update for your laptop via this link. The charger must be connected until the BIOS update is complete to avoid any power interruptions due to the battery draining out.
Post a successful BIOS update, you may check if the battery charges fully. If not then please perform the steps as described in detail in this HP document. These steps help in testing and calibrating the battery.
NOTE: Please skip the steps mentioned in "
Hope this helps! Keep me posted.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!
Have a great day!
09-27-2021 10:39 AM
I had followed your steps. With no luck, did the BIOS update with the charger connected as instructed. Unfortunately, the update failed. Now I am not able to boot to the Operating System.
Upon the failed update, I happened to follow these tutorials to restore the BIOS :
Again, no luck.
Is there any hard reset button on the Motherboard I could use to reset the BIOS?
Please help me!
09-27-2021 12:35 PM
You have done the basic troubleshooting as per the document and the notebook needs to check to get to know its hardware is faulty, not a software issue.
I'd suggest you contact HP in your region regarding the service options for your computer or HP Chat Support Team.
09-28-2021 06:00 PM
Hi Paveen & Hello to anyone reading this forum.
1. First of all, I had performed the BIOS Update as per instructions given from your end. Also do note that the BIOS File that was attached with the first post was incompatible with my laptop (14-ac100ne)
2. Secondly, upon asking my friend who is an electronics engineer, I came to the conclusion that BIOS Updates should never be performed on a Laptop that is experiencing power issues like mine, so the main reason for the corrupt BIOS was that some power failure could have occurred whilst performing it.
Now, I had to open up the computer, remove the CMOS Battery and all the peripherals attached in order to perform the BIOS RESET, which thankfully worked, but this irresponsible move from the support shouldn't be encouraged since it has in fact disrupted my workflow for two consecutive days.
So my recommendation to anyone reading this forum is to never use HP Support ever again for asking your queries, places like LTT Forum are much helpful, since they were the ones who had in fact helped me in reviving my dead laptop, while the support guy here told me to take it to the service center.
Thank you and please never trust HP Support