Acer Aspire M5-581T-6405 Battery Not Detected!

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hellohellosharp

Honorable
Jun 13, 2013
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10,510
Please help! I read a guide about extending battery life and it involved pressing the battery reconnect button (the battery is integrated so you stick a pin in the hole on the back of the bottom piece). My laptop was off with no AC. I discovered that after pressing it, I could not turn my laptop on anymore unless it was connected to AC. On windows, it said it could not detect a battery. Remove the AC would result in an instant power off.

It seems my motherboard has forgotten it has a battery! (Or I wrekced the battery).

I called Acer support and they told me to hold the button again fro 20 seconds. Nothing happened. Since I had dropped the laptop a long time ago and it had a small crack, they won't service it without charging me $250.

I have tried the following things (yes, I did have to open up the whole machine to do some of these).

1. Reinstalled BIOS from the acer driver website.
2. Reinstalled my OS (Windows 7 64-bit)
3. Disconnected the battery and AC, held power button for 2 minutes, re-insert battery.
4. Powered machine down, disconnected AC and battery, held power button for 2 minutes, re-insert AC, pwoered computer on, left for 5 minutes, re-insert battery.
5. Left charger in laptop for 24 hours.
6. Unistalled windows battery drivers multiple times, connected battery, restart, re-install drivers.

I have dilligently tried every suggestion I have found and nothing works. I am now under the impression that my laptop battery could be broken. Is there a way for me to test the battery to actually see if it works?

Here are some pictures:

Laptop SN:

http://cleanfiles.net/images/laptop/SNID.jpg

The button pressed that started all of this:

http://cleanfiles.net/images/laptop/PIN.jpg

The method I have used to disconnect the battery:

http://cleanfiles.net/images/laptop/BAT.jpg

After everything, the battery light never came on

http://cleanfiles.net/images/laptop/LIGHT.jpg

Thanks SOOO much for any help!
 
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TenPc

TenPc

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Jul 11, 2012
2,471
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A small crack in a laptop might not seem to be a big issue but it is rather difficult to actually create a crack in a laptop on purpose without the use of a hammer. The actual force required to cause the crack would have been rather hefty so it could be that there is also a crack in the motherboard and possible damage elsewhere that is preventing the battery from being recognized apart from the fact that you used a pin -
"the battery is integrated so you stick a pin in the hole on the back of the bottom piece"

Your links don't work with anyone except you.
Acer Specs sheet

There was a time that inserting a pin into a dvd drive would eject the tray but would then make that drive inoperable for future use or had a limited life expectancy thereafter so it could be that the pin hole of the battery also has caused an expiration of the battery. Considering that it is integrated means that you do need to return to manufacturer or repair station and to fork out the expnse to fix it, there is no other option.
 
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H

hellohellosharp

Honorable
Jun 13, 2013
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Thanks for replying! I fixed the links.

The crack was just a chip in the plastic on the corner. It happened months ago and the laptop never changed in performance afterwards.
 
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F

fatafour

Honorable
Aug 7, 2012
7
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10,510
I have the same problem!
I have a the aspire m5 481 ptg (the one with the gt 640m le)
I opened up my laptop and disconnected the battery but it didn't do anything...
 
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Shane Andrews

Reputable
Mar 25, 2014
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I have been working on this model laptop for a friend of mine and after working on it, it would not see the battery. Working on computers for a living, this bothered me. After trying all of the proposed fixes, nothing worked. Alas, I had given up and decided to button the laptop back up. This is when I found the solution. It turns out that the battery HAS TO BE GROUNDED to the case in order to operate. It does this through a case screw. The particular case screw it uses is about 1.5 inches above the power indicator LED. If you press in that general area with the laptop plugged in, you will see it start to charge. In order to solve this issue permanently, make sure that the screw in this mounting hole in in tight. This has frustrated me to no end, but I am happy to finally have a solution.
 
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M

malcolm75

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Apr 12, 2014
1
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4,510


This solution works! My computer's symptoms were: battery not charging at times, computer spontaneously shutting down with no warning (like a hard reboot), sometimes windows would say no battery detected. I squeezed my case while looking at the orange battery charge light and found I could make it blink. My case screws were loose. I tightened them and now my orange light doesn't flicker and all symptoms are cured! Thank you Shane!!!
 
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J

joelaw11220

Reputable
Apr 16, 2014
1
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4,510


Dear Shane,
I own an Aspire M5-581T. Last March, 2014, I developed the same battery problem - suddenly, the computer no longer recognized the battery. I tried your fix and it worked great! Turns out, I had a missing screw right under the power and battery light. I replaced it.

Can I please have your contact information for future reference. If I ever need computer work, I want YOU TO DO IT!!! Please send your email and telephone to this address: joelaw11220@yahoo.com. PS: I have a netbook that needs repair. Perhaps you can help me with it.

Thanks
Joe Dash


 
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Scot15

Distinguished
Jul 13, 2013
4
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18,510


Lifesaver! As I like to test the laptop where possible before I put all the screws in place, I was concerned that the battery wasn't detected and pressing the battery button on the bottom of the laptop didn't do anything. Putting all the screws in place worked a treat and I canny thank you enough! My model is a little different it is an Acer M3 Series if anyone has same issue.
 
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K

Kalindobrev

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Jun 11, 2014
2
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4,510


 
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sarahgmomof3

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Jul 30, 2014
1
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4,510
Thank you, thank you, thank you, Shane Andrews! Tightening the screws worked for me, too, and I am absolutely ecstatic to have it fixed! I figured it had to be some kind of connection issue because I think I caused the problem using my laptop on the bookrest of my elliptical machine, and the vibration jiggled something loose. I am so grateful I found your post before I opened my laptop to check the battery connection. Thank you so much for sharing your fix!

 
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Pete Nabel

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Aug 15, 2014
1
0
4,510
I have an Acer AS5742z-4512 P6100. My fix was to uninstall all battery items in Device Manager and then reboot. The BIOS then was able to see the battery and I was able to update the BIOS.

I hope this helps.

-pete
 
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F

five_hole

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Nov 12, 2014
1
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4,510


Thank you for sharing your solution! Tightening the screws near the power indicator lights solved my problem as well.
 
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Emma Godden

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Dec 25, 2014
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4,510


Shane, you are a saviour. My daughter's laptop stopped charging over 6 months ago and I had had the thing apart, bought a new power supply, even ordered a new battery from a dodgy Russian site (fortunately got my money back when they couldn't deliver). Happened to try browsing a solution one last time a couple of days ago and turned up your answer. From the enthusiastic responses my hopes were raised, and when I checked inside the laptop, for some reason there was a short screw already in that hole on the inside. I'd wondered why the outer screw never tightened :) I removed it, tightened the outer one and hey presto, all fired up. This has saved me a ton of money, much grief and I have a very happy daughter. This laptop was junk until this fix, so I am eternally grateful to you. Thank you for sharing your discovery.
 
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C

Cara829

Reputable
Jan 2, 2015
1
0
4,510


Hi Shane Andrews,
your solution is awesome. My son's Acer Aspire Ultrathin notebook M5-481PT-6488 began crashing everytime he tried to use it with battery only. It's just now two years old & has been heavily used - good notebook, so battery issues at this age are understandable. Given that he uses it during High School hours - not running off a battery was a big problem. I was researching to replace the battery - learned then it's not like the old laptops. Was very worried I'd have to buy another right after Christmas. Found your post. It fixed the problem. Housing likely loosened by taking it to school. Just tightening the screws fixed the problem. Many, Many thanks for sharing what your figured out. Extended the notebook life which is a huge money / frustration saver! Cara

 
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R

romulor3

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Jan 28, 2015
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4,510


 
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C

CHenry

Commendable
Oct 2, 2016
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CHenry

Commendable
Oct 2, 2016
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1,510
This is to Shane Andrews. My laptopbattery indicator on the screen was alternating between, "no battery detected" and, "battery fully charged", and it would die as soon as I unplugged the charger.
I came across your solution after all sorts of complex suggestions and I am glad to know your expertise! I first just tapped and pressed on the top of the case where I thought you meant the location of the case screw was supposed to be and I saw a change in the indicator light turning blue and I decided to unplugg the charger and there it was in all it's glory not being plugged in and it stayed on with the battery indicator showing a full charge! I tightened all the screws on the bottom of the case and I am typing without the laptop being plugged in. Thank you thank you thank you!
 
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J

John_520

Commendable
Oct 27, 2016
1
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1,510


I was about to sell this laptop so I replaced the hard drive. All of a sudden the battery stopped working! It wasn't worth it to me to buy a new battery, so I decided not to sell it. 2 years later, my friend needed a laptop so I decided to give this one away for his B-Day. I bought a new wireless card upgrade the memory etc.. But the battery thing was still bugging me too!

Found your replay and.... Bada Bing! Perfect answer. Brilliant!

 
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A

Adnan_19

Commendable
Oct 28, 2016
2
0
1,510


Man you are genius !!! This fix is realllllllllllly weird but works 100%
 
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