Posts: 1
Member Since: ‎08-01-2011
Message 1 of 10 (29,144 Views)

Battery Not Detected

I have an HP G42 Laptop running on WIndows 7 Basic (64 bit) which I purchased on 4th June 2011. After ten days of buying this system, a problem came up where I noticed that in my system tray, the battery icon had a red cross and was saying that there was 'no battery detected' but I could run the system on both AC power and battery power.


I called for an on site engineer who first sent for a replacement battery (which did not work) and then came over to have a look at the laptop. He tried eveything but said that there might be a motherboard issue and sent for a replacement immediately. He also updated the BIOS to the latest version. Strangely, right after he left, my battery showed up and started charging and everything!


Then again on 10th July 2011 I noticed that my battery was charging intermittently i.e. it would charge for ten seconds, stop charging for a moment and then start charging again. Then the next thing I know is that the battery (yes, the new battery) is showing the 'no battery is detected' problem again!


I realize that my system is under warranty and I should call for the engineer, however it has been close to twenty days and I haven't been able to take a look at this being incredibly busy and out of home. I can't even give my system up for repairs since much of my necessary data and projects and reports are on this.


I would really like some perspective on this and if there is anything I can do or any solutions which could work, please let me know.


Thank you!

Posts: 33,697
Member Since: ‎09-24-2010
Message 2 of 10 (29,136 Views)

Re: Battery Not Detected



The only thing I can think of suggesting is the following procedure however I expect the engineer has probably already tried this.


First of all, shutdown the notebook, unplug the AC Adapter, remove the battery, and then hold down the Power button for a full minute.


Now, plug in the AC Adapter without the battery inserted, start the notebook, open windows Control Panel, open Device Manager, expand the entry for Batteries, right click on and the Microsoft ACPI Compliant Control Method Battery and select Uninstall - do not uninstall anything else here.  When the uninstall is complete, shut the notebook down, unplug the AC Adapter, re-insert the battery and then start the notebook on just the battery.  Windows will automatically reinstall the driver - leave Windows running for a few minutes. Shutdown the notebook again.  Now plug in the AC Adapter ( with the battery still inserted ) and start the notebook to see if this has helped the issue at all.






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Top Student
Posts: 1
Member Since: ‎02-06-2012
Message 3 of 10 (28,875 Views)

Re: Battery Not Detected

[ Edited ]

 I tried uninstalling the driver, and then restarting the computer, with NO luck.

The problem may be that the battery and computer contacts aren't firmly seated with each other.

My problem to the solution was to simply grasp the computer a certain way, firmly push on the battery, and to my surprise...IT WORKED!

I hope this works for you...


Honor Student
Posts: 1
Member Since: ‎04-01-2012
Message 4 of 10 (28,414 Views)

Re: Battery Not Detected

thanks man, actually this was the only thing that worked for me, easy fix :smileyhappy:    Everyone should try this before start messing with your PC.

Posts: 1
Member Since: ‎03-25-2012
Message 5 of 10 (26,182 Views)

Re: Battery Not Detected


This happens to me quite regularly, but so far hasnt been fatal. My quick fix is to remove the battery and then re-insert it. this invariable works first time, occasionally need to do it twice. Seems to be one of those HP idiosyncrasies.

Honor Student
Posts: 2
Member Since: ‎07-06-2013
Message 6 of 10 (15,535 Views)

Re: Battery Not Detected



I kept bringing my computer (and charge)r to different outlets throughout my house.  Of course I had no luck.  I started hunting for solutions here, all the while wondering if the month-old computer would die that second.  I was ready to pull out the battery and try the above solution.


Once I pressed everything together, I went from the "red x" to the totally fully battery!  :smileyvery-happy:

Honor Student
Posts: 2
Member Since: ‎07-06-2013
Message 7 of 10 (15,534 Views)

Re: Battery Not Detected

I agree!  It saved me a load of agony!!!   :smileyvery-happy:

Honor Student
Posts: 1
Member Since: ‎11-20-2013
Message 8 of 10 (10,280 Views)

Re: Battery Not Detected


Power on your system with AC in, then remove the battery while is still on and fix the battery back, if it didn't work try removing and fixing the battery three to four times. Mine just worked

If this happen to work don't ever leave the system out of power (AC) for more than 1 week.

Best of luck to you.



Posts: 1
Member Since: ‎09-01-2014
Message 9 of 10 (2,438 Views)

Re: Battery Not Detected

Hi ! 

I have the same issue with my HP Elite book 8440p. Battery is showing a red cross over it and says ' No battery Detected' So I have tried to uninstall the Microsoft ACPI Compaint Control Method Battery, but I cannot uninsall it As soon as I click uninstll it says' you hav to retart the computer before the changes take place' When I restart it its still there and not have been uninstalled. Also it does not install itself when I restart computer which means it was never uninstalled in the first place. So first I need to know what could possibly be stopping it to uninstall it ? 


Also its weird that after a while when i remove ac adapter laptop keeps on running ... and even then the sign of plugged in remains on the battery symbol (with a little red cross over it). That pluged in sign is constant no matter i remove the battery and then starts laptop or I plug in the battery then starts my laptop. Even when I remove the AC Adapter the sign of being plugged in remains on the battery symbol all the time. 


Also I have tried using another battery of another elitebook 8440p and that works fine with no issues of red cross over the battery symbol. It charges fine as well.


So please help me out how can I solve this riddle ? Do I need a new battery ? Or my battery is fine and its just some software issue? 










Posts: 1
Member Since: ‎11-01-2014
Message 10 of 10 (1,135 Views)

Re: Battery Not Detected

Hi guys,


Am from Kenya have a 4540s and been havin this problem for days, the solution is simple if it says "Battery not detected" dont install or uninstall anything;


what you do is with the ac charger plugged in remove the battery and reinsert it, it probably wunt work the first and the second time but it will work the third time myn just did!!:smileyvery-happy:

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