Solved Kernel Error 41

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Avery Marshmallow

Avery Marshmallow

PCHF Member
Feb 1, 2023
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Hello there. I have an hp laptop. Its a little bit old (bought on 2017). I was using it mainly for light gaming and office tasks. I always took out its battery and had it plugged in and then when i was turning it off i might leave it unplugged and without battery. The problem is the last couple months when it is plugged in with just the battery i am getting a kernel error 41 at different battery percentages (89%, 56% etc) i think its when it uses more power than the usual. When its is plugged in the AC everything is fine. I checked the drivers , i formated it, i searched for an online fix but nothing works. Any suggestions?
 
Sounds like a dying battery to me, if you take the battery out of the system and plug it directly into the wall do you get the error?

Let's get some more eyes:
@Bruce @PeterOz


Let's get some more information:

Download and run the free version of speccy.

Once you have ran speccy, follow the instructions to upload a snapshot found here.


To publish a Speccy profile to the Web:
  1. In Speccy, click File, and then click Publish Snapshot.
  2. In the Publish Snapshot dialog box, click Yes to enable Speccy to proceed.
  3. Speccy publishes the profile and displays a second Publish Snapshot dialog box. You can open the URL in your default browser, copy it to the clipboard, or close the dialog box.
Click to expand...
 
Pyro said:
Sounds like a dying battery to me, if you take the battery out of the system and plug it directly into the wall do you get the error?

Let's get some more eyes:
@Bruce @PeterOz


Let's get some more information:

Download and run the free version of speccy.

Once you have ran speccy, follow the instructions to upload a snapshot found here.


To publish a Speccy profile to the Web:
Click to expand...
Well thats another whole story. If the battery isn't connected no power is drawn by the pc. If i have the battery plugged in and the AC and then remove the battery while pc is running all is ok. Maybe is it a motheboard issue i don't know :(
 
Some laptops allow you to disconnect the battery and run solely off of AC power, what model of laptop do you have?

Please link the speccy snapshot as per the instructions in post #2.
 
Pyro said:
Some laptops allow you to disconnect the battery and run solely off of AC power, what model of laptop do you have?

Please link the speccy snapshot as per the instructions in post #2.
Click to expand...
Well here it is:

Also from Manufacturer's page:

HP Notebook - 15-bw016nv Product Specifications | HP® Customer Support

Looking for upgrade or update information? Trying to find the names of components or programs? This document contains the technical details for this product.
support.hp.com support.hp.com

I know what you might say . Windows 11 that i currently have is unsupported (because of the unlisted cpu) but i also tested the pc with Windows 10 and had the same issue.
 
To clarify, when you shut the computer you take the battery out of it?

When you reformatted the drive did you install the drivers in the proper order before connecting to the internet? It goes motherboard chipset, storage controller drivers, video drivers, and then all others.

Please test your battery as detailed in this article, Kernel Error 41 can be a result of a power issue.
 
never seen a laptop that can't start if the removeable battery is not inserted.
so that could indicate another issue.
but yeah, otherwise all indications are the battery is the root cause of the error.

considering the battery is 5 years old, and LiOn battery's only have about a 2-3 life span before the lithium oxidisation starts to noticeably effect the charge duration, that would also fit in with pointing the finger at the battery.
 
Pyro said:
To clarify, when you shut the computer you take the battery out of it?

When you reformatted the drive did you install the drivers in the proper order before connecting to the internet? It goes motherboard chipset, storage controller drivers, video drivers, and then all others.

Please test your battery as detailed in this article, Kernel Error 41 can be a result of a power issue.
Click to expand...
Now when i shut down the computer i dont take the battery out of it like i used to.
When i reformatted the drive i had to connect to the internet . It was mandatory to proceed to windows (log in with Microsoft account) so i didnt donwload the drivers from the webpage because they installed automatically from windows. I only installed the graphics driver, a d all versions of Microsoft visual c++ . Before i even run drivers and windows updates i had kernel error 44
1. I tested both the battery and the ac and there is no sign of not working properly.
 
when reloading Windows and starting it for the for the first time, you should be able to NOT log in with a MS account - use log in with a local account instead.
 
If you do not connect to the internet you are able to complete a limited setup, check this article out for a general overview.
 
Sounds like battery.
Because you used to remove the battery. My guess is the battery memory is scrambled.
Today's batteries have smart technology built into them.
You may be able to remedy the situation by draining the battery and recharge it a couple of times.
This may or may not work as some batteries do not allow complete discharge.
 

PeterOz said:
Sounds like battery.
Because you used to remove the battery. My guess is the battery memory is scrambled.
Today's batteries have smart technology built into them.
You may be able to remedy the situation by draining the battery and recharge it a couple of times.
This may or may not work as some batteries do not allow complete discharge.
Click to expand...
Seems like it is the battery indeed. The thing i said above about not charging without the battery when pluuged in the wall doesnt apply just tried it. The problem is i cant discharge the battery because at some point pc will turn off no matter what i do . I tested it the other day just leaving the screen on with maximum brightness and no updates, background processes just windows . It dropped from 100% to 75% and then turned off. The only way to test your theory is probably buying a new one or maybe try to leave the battery on the pc for about 2-3 weeks i think it slowly discharges after time . I will try as well not connecting to the internet during the installation even though it is mandatory. I think rufus can create a setup where there is already a local account and you skip this part. I will keep you informed .
 
if you do end up buying a new battery (and indeed, that's what I'd be doing) make sure it is new, as in newly minted, not 'never been used before'.

a two year old, never used, still in packaging, battery will be as bad as one that has been used consistently for two years.

you want a freshly manufactured unit, or one with new cells put into the battery compartment.
most laptops with the rounded batteries used 18650 cells inside, and these are a dime a dozen (cheap as chips). even Tesla cars have 1000's of these 18650 batteries all soldered together to make up their battery banks.
so sometimes a battery repacker mob may be cheaper than a new one from HP.
 
OK, no sweat.
we'll close this for now and feel free to PM any staff member to have it re-opened if need be. :)
 
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