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How to restart a dead laptop battery BMS due to loss of power to chip. Worked on lenovo battery.
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- Опубликовано: 9 ноя 2019
- How to restart a dead laptop battery BMS due to loss of power to the chip. This is an excerpt of my full video on successfully replacing the 18650 cells of my Lenovo laptop battery. That video will come up shortly. The battery shown in the video is for a Lenovo G510 but this trick has been demostrated on many different types of laptop batteries with successful restart of the battery management system board.
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Thanks! Saved me! I was about to throw away a new BMS thinking it was broken (all the connections had the right voltage except the output pins). For the people who didn't notice, you have to connect the B+ to the P+ for about 3-4 seconds (no sparks in my case).
cn you be more detailed about this 🥹
Wow! I have a hp battery with every cell of above 3.9V. Multimeter reading was all zero at the output ports and i was fed up Searching for a new BMS. I bridged all the ports with positive till i got a spark... And hola!! Laptop was awake after changer being unplugged. Thanks a lot brother! ❣️❣️
Very good class
I have hp laptop and changed cell ,battery overall output is 14 v ,but in bms output it shows 0 volt ,please help ,i already giving 14 v to bms but its show 0 volt.
@@kevalpatel9728 as first u must "refurbish" good battery with low capacity. If battery have bad cell or wery low capacity, IC in it cut of battery from charging or using, to prevent damage/not all batteries/.
No se ve bien lo qué haces
I was replacing the cells in some simple handset batteries, and when I put in new 18650's, the output was not working. For me it was the battery negative to the negative output reactivated it. You video helped me a lot, thank you. :)
as first u must "refurbish" good battery with low capacity. If battery have bad cell or wery low capacity, IC in it cut of battery from charging or using, to prevent damage/not all batteries/.
Thank you. ...Note - I just removed my bms... and 5 minutes later I find this video...
This worked like a charm for my Acer Aspire D255 Laptop. I changed the batteries but it still wouldn't power on. This fixed it. Thanks
I did it in my laptop battery but I had a proplem
When I connect the postiv from battery and the postiv output from the cercul like u did
it gose from 0 volt to 14 v
But once i remove it it gose to 0 v agin
Is ther a way to fix it
Hope u answer me and Thank u any way
Thanks, it worked for me 👍
I was doing battery replacement of Dell e6410 original Laptop battery
that is great! did you connect battery positive output to bms positive?
Thank you! Gonna try it today myself, your reaction tells me youre not lying.
Yeah, I thought it was all over lol. When I saw the voltage at the exit I almost ran out the building ahahahahaha
@@diyroby732 Unfortunately it didn't work on my unit but I will keep this method handy for the future. Do you have any other possible solutions? I pretty much ran the positive terminal to all the pins, might have even fried the board :P but nothing worked :'(
Unfortunately, not all manufacturers allow the bms to be revived. There are some videos online about shorting some reset points on the board, you'll have to search for them based on your battery brand. If your battery has an aftermarket version (or just the bms) on ebay for cheap, you could try that. Just make sure you don't spend more than/or close enough to a new battery for your laptop.
@@diyroby732 yes, in my case I have a dell battery and even doing this procedure I still have O volts in battery output pinouts.
@@ProgramaFlashPan yes the same issue i have, after shoring this, the reading of chip is no more, no deduction of bms
thanks Bro.... its 100% work for my X230 Battery. this is so usefull video.... Greeting From Padang, Indonesia...
Glad it helped
Thanks alot, it works for my acer laptop battery .
Thank you man, you are a genius....it saved me a lot, God bless you 🎉❤
for me was de negative of the battery with de negative output!! Geniusssss!!!!!!!!!!!!
It work...thank you so much bro
.i loved YOU 🥰🥰
Not working on my t420 battery (42T4792), I Have 12.6Vdc between battery terminals. I did the shortcut but nothing happened :(
Bro bruh BRO!! I'm in complete disbelief rn.. it worked.. thank you and bless
Saved my day, recelled pak and have had no luck...but now thumbs up
Glad it helped. Is the battery pack working well? How fast is it being recharged. Mine is trolling me with 10+ hours recharge times
Nice trick, it might be useful one day !
Thanks Azrael, I prepared myself for 2 weeks to perform this battery upgrade without disconnecting the BMS. Too bad life always has other plans. Thankfully this trick was in my back pocket if the need arose.
Great video, thanks!
Oh man, thank you very much!
You're welcome!
Nice tip. But bro with ur fingers in the middle i couldn't see where u were touching near/on the pcb board. I'm new to all this. My laptop battery is not charging. I opened the battery power pack. With the help of RUclips. Out of 6 batteries inside 4 were reading 3.60v and 2 were 1.45v. After doing hack on those two batteries it showed 2.40v each on both batteries.
After putting back on laptop still not charging... Shows 58%. If i unplug the charger the Ltop shuts down.
I don't know what to do.
So what must be the voltage of single cell 🔋 to put inside the battery pack if i want to buy a new one?
Thanks bro.
hello great video, I have one HP chromebook x360 2 on 1,it doesn't charge, but when i disconnect the battery and then reconect it, it charges as good as new, but then to charge it, I need to repeat the same process.
I have the same problem but its not working for me this method. I dont have any volgate in my positive pin.
Bhai mere sabhi sell ok h lekin + or - pr voltage nhi aa rha h kya kru
Thanks, it worked for me very good
thanks its work (acer aspire e5-573)
Hi, could you help to reset bms with acer aspire e15 575g, I tried but it can not work.
Tks.
How is it working , any issues in charging and backup??
Thanks so much sir
Talented guy
Works with Thinkpad X230 battery ;-)
Are you resetting the DATA pin? Please, I'm trying to reset a HP EV06 battery after replacing the cells. Battery shows it's fully charged on the computer (which I know those cells were charged before putting them in so I could eliminate any possibilities of dead cells.
Worked on lenovo yoga 3 pro. After cell replacement, it had 0 life. You saved my ass
Works in Acer aspire tnx my frend
thankyou you help me❤🎉
thank you so much it work for me
WORKING! FOR MY HP LAPTOP BATTERY. Thanks alot
Which laptop pls ?
@@RandomGuy-om1vy HP
@@nibumathew3427 Which HP?
Sir can you explain which ports connect with wire for sort?
Didn't work in my hp
Thank you!
Not worked in hp 2016 model battery . I even charged them.
In my batery pack there was only one batery which need to be chanced and I replaced it. I pluged it in to the laptop and it is working. But issue is that it is charged only until %45. why can it be? Today I will try your way. I hope it can solve my issue too. Thanks bro :)
bro I tried it and it worked thanks
Thank you bro..
I will try this later..
I have a lenovo yoga 260, i make this procedure but i only have a litle decreasing voltage 1.5v, after bridge the positives! Can you help please.
Perfect ! 😉😎🖒
Added to my playlist.
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This trick has not been activated my Lenovo g500s laptop battery bms..I changed first one weak cell,not worked then I changed all 4 cells but no use, no output from battery pack output terminal s
Бред какой-то, всё также проделал и ни чего не получилось.
Could you improve the method so that we dont have to pry the battery open? Maybe two or three holes on specific place? We can still use lenovo battery and learn from you
Good idea. You can make a small hole at the top of the battery if you know how it looks/is arranged inside. In my case, I had to change the cells, that's why I opened it fully
congratulations 👏
But my battery connector pins are only giving output when the points you short circuited are connected. Should i solder those points. Can then i use it in the laptop? Is my laptop going to blast when i am going to charge it? Please answer.
If you bypass the BMS by shorting the output, it is very very dangerous. You will be charging/discharging the cells directly without any control. Too dangerous pal.
@@diyroby732 So how can i use the battery again? Please reply soon as i need my laptop battery to be revived.
Pankaj Rajput same as my problem.
Ok diy roby.... im listning.
Heres what ive done so far. Re celled a dell battery. And used those +to + jumpstart wire. But yes my problem is the same as the comment above, it only shows the voltage on battery connector when i KEEP that wire CONNECTED if i just jumpstart it and check the voltage it shows 0.9-8-7-6 and then to 0.
So should i keep it connected like solder it and keep an eye on the time i keep it plugged it in or so? Like usually this dell laptop battery charges in 1 hour or so. So if i keep it under 30 mins charged up will it work? I know im taking a risk but still i need my battery to work. Thanks in adv.
Also i checked the fuse on the battery pcb. It was blown, but i jumped that too. But same result.
There is just no way to keep an eye on it. 18650 cell BMS reduces/increases the charging current based on the charge capacity. It is advanced calculations we just can't do. Don't forget that the BMS actually charges single banks of cell pairs individually, not all of them at the same time. For me this trick worked on a Lenovo battery, but Dell probably has a way to brick the whole battery once it detects a recell attempt. Charging without the BMS is a sure way to start a fire and that means your whole laptop might burn down. Because of this reason, I just can't recommend you do this. The only real option to using your batteries is to make some sort of external powerbank like this guy did with a powertool battery ruclips.net/video/k_2tZrYf7tQ/видео.html
Anyone reseted a Sony vaio SVS VPBCSB battery ? that one with flat cells in it
Mine sparks but still doesn't output any voltage.
Due to bms not working +ve is unable to determine... There are total six lead from battery circuit. Ground is detected from negative side of battery reference.. Is +ve at right end side lead??? How to determine...
thanks
Hi all,
Could you please help to reset bms with Acer Aspire E15 575G. I have tried, but it does not work like video.
Tks.
😢
Still in actuality you need specialised hardware (i.e. EV2300/EV2400) with software (Smart Battery Workshop or Battery EEPROM Works) to really reset a laptop battery. Specifically the BQXXXX IC that is located on the PCB board - to which the 3 pairs of 18650 cells are connected to. 😑😕😒
thats not working
@@ManishPatel693 Really ? How so ? 🤔
Hello, i have problem too. My battery could hold for 2-3 hours, but i've removed it cuz i wanted to reset bios and after that i've notice that my laptops turns off after few minutes on battery. The battery was fully charged, but laptop turns off. Right now my laptop cannot turn on on battery at all. And when i've meassured my + pin there is no voltage at all. If i measure my batteries from both sides there is 12.5 voltage. My laptop is x541sc ... I've bough second-hand battery like mine, but it's the same. No voltage from + pin. Is my BMS locked cuz i've removed my battery from the laptop or something like that? How we fix this? I've tried with positive to positive, but didn't work.
@@OldboyWOW Hi,
It is possible that the fuse on the BMS is blown. Hence no voltage coming through or via the BMS. 🤔😕
I had this issue for a laptop battery from ASUS K53E. I replaced the fuse with a low ohm resistor & now voltage is flowing through the BMS. 🙄
Best Regards,
Could you write laptop battery pinout values. İ mean which pins i should read 12 Volts?
Even after this it's showing wrong capacity anyway to reset the battery capacity I tried everything nothing works in bios setup the battery backup is good but in os it's 15 min I replaced the battery recently with new one?
1. Maybe your system is not allowing you to benefit from new capacity after replacing the cells
2. Maybe in reality, your new cells are not really original or a high capacity cell.
To reset the battery capacity, disable the battery manager in Device manager and then allow the computer to run on battery till it actually dies. If it dies before, then try leaving the computer on in the bios overnight to completely drain the battery till it shots down.
Then charge the laptop and read the new value.
Here is a video I made about it ruclips.net/video/iYMnDykddyo/видео.html
@@diyroby732 actually in bios it's like 4 hrs of backup but on os it's 15 min I tried to do the bios method still showing low capacity.😄 Maybe asus did something to the bms circuit.
Probably. Mine is a Lenovo, while the repair worked, the bms is trolling me with 10+ hours recharge times for a sub 50wh battery. These manufacturers don't want us repairing stuff.
@@diyroby732 when I disable acpi and use the laptop giving me quite good backup is it safe? charging and charged LED indicator working fine only problem is there is no low battery indicator or critical battery level if I enable acpi the battery behaviour is abnormal even I had calibrated it several times.
hey bro. idk whether you can understand my problem, but still i wanna tell.
i have made a lifepo4 battery pack of 7p, 24s. with dedicated lifepo4 24s bms of 50Amp capacity.
all connection are done correctly like -
B- to battery negative
C- to charge negative
P- to negative of controller
The bike goes on, the bike display is on and going and all the sensors with horn & indicator are active.
But as soon as i pull the accelerator, the system goes down.
What you think? should i pull out the BMS for its wiring and soldering checkups?
coz the battery i fixed was connected accurately.
please help.
Sorry bro. This was my first time even seeing 18650 cells. You will need to ask from the pros on lipo forums, or the BMS seller. Looks like the BMS is shutting down whenever you try to pull power from the pack. Hope you find a solution.
@@diyroby732 okies. thankue.
Sir i have changed my bettery cell with new one but still not working with bettery what is the reason behind.
hi guys , if laptop bms not reading chip what should i do? i am using NLBA software, were i am facing lot of problem after replacing cell, almost not charging issue are there , can any one can help me out
Dear Sir,
My laptop battery isn't charging due to a central cell issue. I replaced cells, but the central one still won't charge. BMS works fine for the side cells But its not charge the Central cells. Could you please suggest a video or make one to help me?
unfortunately, I have no technical knowledge of these battery systems. I also searched online, read forums and watched videos to attempt this repair. Keep searching and hopefully you find a solution.
Great
#chipguidecomputer
My hp battery is JC04 I repaired it. Show 99% Charge in when plugged but when plug removed laptop shut down.
Did you ever fix it?
Sir for which port you connect wire ??
I connected the positive of the battery pack cells to the positive pins of the output of the battery (where you see the metal pins that connect to your laptop when you insert your battery into it)
How do you know where is pozitive pin ? It's a lot of pins
Search for your laptop battery brand wiring or schematic. That's the best bet.
Can i use it to my laptop after repairing it?
Can someone confirm this method works on t540p battery please?
Like a charm.
I need help please , when I connected the positive end of the battery to the p+ pin it sparks but
connected the the positive end of the battery to p - pin but nothing
No success
Battry is Hp pro6
Hp battery for 4440s
Please urgently need help
Hey BM, unfortunately not all manufacturers allow for a repair of the battery. Fortunately for me, Lenovo does. but other companies may have left destroying fuses etc. Check online for your brand.
i tried with 2 lenovo batteries for t500 didnt work on neither
not workong bro
If any problem
#chipguidecomputer
@@chipguidecomputer i have problem. Whats your solution?
@@chipguidecomputer Hello, i have problem too. My battery could hold for 2-3 hours, but i've removed it cuz i wanted to reset bios and after that i've notice that my laptops turns off after few minutes on battery. The battery was fully charged, but laptop turns off. Right now my laptop cannot turn on on battery at all. And when i've meassured my + pin there is no voltage at all. If i measure my batteries from both sides there is 12.5 voltage. My laptop is x541sc ... I've bough second-hand battery like mine, but it's the same. No voltage from + pin. Is my BMS locked cuz i've removed my battery from the laptop or something like that? How we fix this? I've tried with positive to positive, but didn't work.
I tried on my dell battery but it didn't work. It says permanent damage.. 😔😔😔
Sir, please help
I replaced cells of my laptop battery, but on the bms connector it's not showing any voltage, my 4 cells shows 14v but not on connector,
I also shorted like you did sir but nothing happened
Please help me
Unfortunately, not all manufacturers allow this trick to work. You have to google your battery brand+repair or rebuild and see if others have done this in the past.
Hell this didn't worked to me
My battery absolutely died due bad cells. I replaced them. I'm currently getting 0.36 V output only.
I can stay whole day shorting cells + and batt + but it won't work
I'm almost giving up 😑
I have aa problem when i short its blow bms Circuit fuse please help me and tell me another way and replay my comment
Unfortunately, I'm not an expert in this so I don't have any advice. I simply showed what worked for me in this video. Try searching online for your battery model and BMS/battery forums
Fiz isso aí mas não deu certo não!!!!
Pra mim isso é treta, história mal contada. Todos os POUCOS que disseram que deu certo são da turma dele e tão tirando sarro da cara de todo mundo e ganhando CLIQUES.
A mi no me ha funcionado existe alguna otra solución? Tendría q estar 100% cargada la batería?
Lo has podido solucionar?
@@P_ablo24 q va la tiré a la basura
did not work on HP bat... PH06 :(
I didn't work on my bms..any more advice to unlock..
Sadly non. I'm not knowledgeable in these things.
Any advice on how to keep the BMS powered while replacing the cells?
I heard you have to keep supplying the same voltage the battery gives. Wiring it in parallel so when you disconnect the old battery, power remains from the other source.
Not working in my case🙁🙁🙁
Obrigado meu amigo! Me ajudou muito 👋👋👋👋👋
Boa noite Paulo. Sei que faz tempo, mas você lembra como você resolveu? Foi igual à solução dele? E qual é o seu notebook? (marca e modelo). Valeu!
Not works with battery from Lenovo x121e. I need to buy new one.
:( Did you try negative to negative?
Doesn't work for me the fuse keeps blowing even though there is no short on the circuit (maybe BMS chip is ded).
I had removed the cells to replace with new ones
Hello, i have problem too. My battery could hold for 2-3 hours, but i've removed it cuz i wanted to reset bios and after that i've notice that my laptops turns off after few minutes on battery. The battery was fully charged, but laptop turns off. Right now my laptop cannot turn on on battery at all. And when i've meassured my + pin there is no voltage at all. If i measure my batteries from both sides there is 12.5 voltage. My laptop is x541sc ... I've bough second-hand battery like mine, but it's the same. No voltage from + pin. Is my BMS locked cuz i've removed my battery from the laptop or something like that? How we fix this? I've tried with positive to positive, but didn't work.
Unfortunately I can't help as I am no expert in these things. I simply showed a tip that worked in my case in case that helped others.
Oh no
Had a dead $100 battery from a new model lenovo laptop, shorted positive to positive and suddenly there is power again on the output!!
Congrats. Which battery model is this?
@@diyroby732 L17M3P52
it does not work witth my dell laptop
me too
This method did not work on HP laptop battery.
Sir battery ka output nhe aa rha
Not working on dell
Sadly it isn't working for me ☹️
Try connecting the battery's negative to bms out negative (as opposing to this video)
@@thanhvinhle2893 Yes, will try that.
@@G_techlab What is the model of your laptop? Did the it work with the negative side?
@@csupakabra4 I don't remember the exact model, it's a HP Pavilion (4 cell long battery).
I still haven't tried it. Working without battery since.
@@G_techlab have you tried it? What did you do?
Its not working 😭 on hp
can you also put a positive on it without opening everything?
you may have to drill a small hole on the top of the battery case so a wire can touch the internal positive of the battery pack. Then you bridge with the external positive. Check your specific battery brand for wiring diagram.
How it will loose power if battery isn't opened from beginning ?
I did it in my laptop battery but I had a proplem
When I connect the postiv from battery and the postiv output from the cercul like u did
it gose from 0 volt to 14 v
But once i remove it it gose to 0 v agin
Is ther a way to fix it
Hope u answer me and Thank u any way