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View Full Version : Asus G751 battery stuck at 0%. Every 10-15 mins shuts down - found a FIX (kind of)



z3ro-88@live.de
06-27-2018, 07:03 PM
Hey guys, i need ur help.
Befor I start,I know there a few threads with battery issues. But my is a little different.

My battery is stuck at 0%. It won't charge up even if it says "charging". Every 10-15 mins my notebook shuts down, without any warning.
When I reboot, all windows are still open (maybe energysaving mode).
It wont start without plugged of AC.

What I tried:
1. Plugged off AC and press power for 1 min. (not worked)

2. Go to device manager -> battery -> and deinstall all komponents
after the restart they installed themself (not worked)

3. what has worked (kind of)
device manager -> battery -> deactivate Windows ACPI....

since I did option 3 the battery isn't in my taskbar anymore. My Notebook doesn't shut down.
BUT the video card is not working anymore (Code 43).

When I activate the battery again and restart windows the nvidia video card workes again.
=> so if u activate the battery and restart, the videocard workes... and if u deactivate the battery afterwards, everything is nice (battery off - video card on)
but its kid of annoying doing that all the time.

Do u guys have any idea what I can do? I don't mind if the AC must be plugged in everytime. I just need the video card working.

Sorry for my bad english :)

Thanks

Sanctrum
06-28-2018, 05:33 AM
Buy new battery.

z3ro-88@live.de
06-28-2018, 10:34 AM
Buy new battery.

if it would be that easy... its not replaceable

Sanctrum
06-28-2018, 06:51 PM
Really? Asus ROG G751 battery replacement: https://www.youtube.com/watch?v=i96gD_AcAe0

Weirdoutworld
06-28-2018, 07:04 PM
if it would be that easy... its not replaceable

Its really not to bad of a job... Just make sure you have a clean work area, keep all of your hardware organized, work slowly & take pictures as you go.

You can do it! 👍

z3ro-88@live.de
06-29-2018, 04:03 PM
Its really not to bad of a job... Just make sure you have a clean work area, keep all of your hardware organized, work slowly & take pictures as you go.

You can do it! 👍

That motivation :D

ok, didn't know it is possible.
But where I get a good battery. I life in germany. When I google, there is just made in china batterys. All comments say "dont buy these". :/

Found 2 but they didn't look OEM. And they have less mAh then the original one.
Are one of these ok? Thank you guys for helping me :/

http://www.all-batteries.de/laptop-akku/asus/g751/series-iml91904.html?utm_source=GoogleProductSearch&utm_medium=preisvergleichsportale&utm_campaign=GPS&gclid=EAIaIQobChMIk4201pb52wIVOCjTCh0Y1wwkEAQYBCAB EgLtY_D_BwE


https://www.replacedirect.de/product/p0702501/laptop-akku.html?subid=101031&prrel=14300990

Sanctrum
06-29-2018, 05:40 PM
Ask Asus support maybe?
But I have talked with a friend who worked as Asus service center for 10 years... And there is a general problem with Asus policy for spare parts... It's probably NOT possible to buy new original battery from Asus without the replacement service - so they are forcing you to pay more and wait longer time without laptop. And this sevices quality... imposes high risk of reciving back something spolit more than expected and with long wating time... + ping-pong of sending back your unit again and again! VERY NICE POLICY ASUS! Pffffff...
So friend just suggested to (if you are out of warranty):
1. remove defective battery from the laptop... completely. Just disconnect it - maybe this will workaround your workaround with ACPI.
2. buy new battery from china... even if it's little bit worse... BTW, original battery is also made in China, as everything else.

z3ro-88@live.de
06-29-2018, 07:27 PM
yeah... i asked them and they gave me 2 sites... on both the battery was sold out. Well thanks Asus... nice support.

Do you think it will acutally work without any battery in? Cuz it looks like a lot oft work to tear down all parts. Would be frustating if I put the battery out and build it up again and it wont work :D
If I deactivate the Windows ACPI the VideoCard isn't working. Would be nice if it works without any battery.

Sanctrum
06-29-2018, 09:04 PM
It will work without battery almost 100% sure... if your PSU nor laptop power jack are not damaged.
Se here: https://www.youtube.com/watch?v=3A05yPyJ8e0 - listen carefully to his story...

To replace the battery you do not need to teardown your laptop... I think you will even not have to remove the screen, just tilt the screen 90 deg. to the keyboard surface... and maybe the 2 tiny battery screws will ba accesible (but not sure and might be wrong).
Personally I was cleaning my g751jy laptop by removing the keyboard (or unscrewing it and just lifting without diconnecting the ribbons). Everyone should do this from time to time. To remove the keyboard it is max. 10 minutes job.

z3ro-88@live.de
06-30-2018, 05:51 PM
thank you again :)
but i just read that asus uses the battery and AC at the same time when you do gaming and high power usage stuff.
Are one of the battery good that I posted earlier?
I think both have lower mAh (5200) and Wh (78) than the originall one.

Sanctrum
07-01-2018, 02:01 PM
You are right... but lower mAh of battery just means ONLY that the battery has lower capacity = will discharge little bit quickly... and that's all. It will NOT impact gaming since no one reasonable thinking person will play using only the battery.
You will not notice this capacity difference at all if using/playing laptop while connected to AC PSU.

If your PSU is faulty or has not enough power then high power gaming requires both AC + battery consumption, so this is exceptional situation... not standard, so at your place I would:

1. disconnect faulty battery
2. temporary use AC only... and buy battery replacement in the meantime and ASAP...
3. replace battery and play as before using both: AC + battery.

Why I would do 1? Since it is already defected and (although battery has lots of security levels) it still might: put additional stress to your PSU trying to charge it instead of focusing on powering the laptop, it can set on fire... you never know!

z3ro-88@live.de
07-07-2018, 11:57 AM
ok, i bought a new battery and replaced it.
After I booting it up, everything seems to be fine. It was charging.

But after it was fully charged I unplugged the AC and the battery dropped from 100% to 0% and the Laptop shut down again.

I rebooted it again and now it says "3% charging" but it is not charging... it stays at 3%.
Then suddenly its 100% again and after I unplugged it, the same thing happend.

I try to uninstall the ACPI and restart again but its not working ...

Whyyyyyy :(

I paid 80€ for the battery and its not working :(

Darnassus
07-08-2018, 01:30 AM
Wish I saw this when you first posted it. Before doing hardware, always do software first.

I say backup everything and reinstall Windows fresh via CD / USB. See if the issue persists.

z3ro-88@live.de
07-08-2018, 03:50 PM
i dont know what to do now.
After the battery was fully chared up, i unplugged it and it worked fine... i let it drop to about 7% and recharged it again.
But after it was on 100% again it dopped from to 60% normally and than from 60 to 0% within 1 second.

and everytime when its on 0% and i charge it agai, the battery is stuck at 2% but in the background its still charging. because after a while it jumpes from 2% to 100%.
ahhhhhh frustation

Sanctrum
07-09-2018, 07:07 AM
Uhhh, you are out of luck! Assuming your new battery is OK... looks like you might have a cold solder somewhere. But maybe even you original battery is quite OK?

I wold look for cold solders at the palces where connectors are and where higher temps might be... often also at battery/psu connectors.

Ecologic lead free solders are not so much durable nowadays...

P.S. In general you should not let your battery to discharge, it harms LiPos.
And there is no formatting of LiPo battery... since it is not NiMH battery.

z3ro-88@live.de
07-10-2018, 11:26 AM
i dont know if its like that.
Because, even when it says its just 2%, the battery workes for more like 1 hour.
Could it be a software problem?

Sanctrum
07-10-2018, 08:49 PM
I do not think it is a software problem. However to be 100% sure maybe try to boot your PC from some bootable DVD with e.g. Ubuntu. At Ubuntu there is also a battery icon... so you can compare.

P.S. Have you tried with long press of laptop Power buton while it is connected to PSU? It resets PSU and laptops electonics that are responsible for charging...

z3ro-88@live.de
07-11-2018, 07:18 PM
I do not think it is a software problem. However to be 100% sure maybe try to boot your PC from some bootable DVD with e.g. Ubuntu. At Ubuntu there is also a battery icon... so you can compare.

P.S. Have you tried with long press of laptop Power buton while it is connected to PSU? It resets PSU and laptops electonics that are responsible for charging...

ehm... the battery led is blinking all the time. I saw in other threads the option to reset everything with the Powerbutton press.

but I had try it without PSU connected.
Now i tried it with PSU plugged in and after i restarted my notebook the blinking led was gone and everything seems to be fine. I was so happy. But after about 20 seconds the laptop shuts down itself again :( and after i restart (without PSU) the Led is blinking again, the battery says 2% but its still running for like over 1 hour.

It almost worked. :(

Its weird, because everytime I unplug the PSU its shuts down within 10 seconds. But after I restart it (PSU still unplugged) it starts again and run a decent while.


I dont know how to boot on Unbuntu :/

Thank you mate. 4 helping me so much :)

Darnassus
07-13-2018, 03:01 AM
Install Windows on a separate HDD and boot from that, see if the issue persists. ;x

Sanctrum
07-13-2018, 03:01 PM
Ubuntu - Try Ubunto before install: https://tutorials.ubuntu.com/tutorial/try-ubuntu-before-you-install#0

z3ro-88@live.de
07-17-2018, 05:35 PM
ok
I booted Ubuntu with USB and got the same issue. :(

After Ubuntu started, I unplugged the PSU. after about 5 min the battery dropps from 100 to 98%... and then the Notebook shuts down itself again :(

Rawand
07-18-2018, 12:18 AM
I have exactly the same issue
and the battery is completely dead still I didn't replace the battery

so after u change the battery what happens when you unplugged in with the AC
it's only restarts if you unplugged AC?

z3ro-88@live.de
07-18-2018, 07:56 PM
I have exactly the same issue
and the battery is completely dead still I didn't replace the battery

so after u change the battery what happens when you unplugged in with the AC
it's only restarts if you unplugged AC?

I explained everything in this thread... it doesn't restart. It goes in the energy saving mode (dont know what its called in english, same as shut down but after you press the power button, everything is still open)
When the PSU is plugged in, everything is fine.

Sanctrum
07-18-2018, 08:04 PM
ok
I booted Ubuntu with USB and got the same issue. :(

After Ubuntu started, I unplugged the PSU. after about 5 min the battery dropps from 100 to 98%... and then the Notebook shuts down itself again :(


Ok. So we have 3 hardware options:
1. your new battery is defective
2. your laptop is defective
3. both are

Assuming you are not able to do this (since g751jy battery connector is not documented): https://www.youtube.com/watch?v=-MGQ0Ap_raM
I think you have no choice and must send all they ask to Asus service... :(

TurkROG
07-19-2018, 11:23 PM
so dears what is the conclusion , if i disconnect the battery cord only without removing the battery , laptop will work ? or i have to install the battery ?

cuz i am thinking to do so , if it will work and will keep my laptop functioning , i will do it immediately , Kindly your advice here

z3ro-88@live.de
07-30-2018, 06:27 PM
so dears what is the conclusion , if i disconnect the battery cord only without removing the battery , laptop will work ? or i have to install the battery ?

cuz i am thinking to do so , if it will work and will keep my laptop functioning , i will do it immediately , Kindly your advice here

Selam,

yeah, I'm gonna send my new battery back and get a new one.
Now I'm using my Notebook without any battery and it works fine.
Some people say, that the G751 uses the PSU and battery at the same time, when doing heavy CPU stuff (like gaming). Don't know if it's true, but sounds possible.

Rawand
07-31-2018, 03:15 PM
Selam,

yeah, I'm gonna send my new battery back and get a new one.
Now I'm using my Notebook without any battery and it works fine.
Some people say, that the G751 uses the PSU and battery at the same time, when doing heavy CPU stuff (like gaming). Don't know if it's true, but sounds possible.

So without battery works fine? no more restarts?

z3ro-88@live.de
07-31-2018, 06:20 PM
So without battery works fine? no more restarts?

It hasn't restartet befor... It has turned into "hibernation mode" (don't know if its the right word...just googled it), cuz the battery has shown 2% = critical. If the PSU was plugged in, everything was fine. It just happen without PSU.

Without battery the LED ist blinking, but till now, I didn't notice anything wrong.

Rawand
07-31-2018, 08:45 PM
It hasn't restartet befor... It has turned into "hibernation mode" (don't know if its the right word...just googled it), cuz the battery has shown 2% = critical. If the PSU was plugged in, everything was fine. It just happen without PSU.

Without battery the LED ist blinking, but till now, I didn't notice anything wrong.

As i said i have same issue
so without battery no more problems ?
i guess i remove my battery as well