Laptop Battery Factory Reset at Home | How to Repair Laptop Battery

Laptop Battery Factory Reset at Home | How to Repair Laptop Battery | Not Working Laptop Battery

Рет қаралды 363,114

3 жыл бұрын

Hey guys,
Welcome to the world of innovation "DREAM FINDER".
If you like the video then you hit the like & share button and let me know Your valuable feedback and comments in the "comments" section.
Please subscribe to my channel and make sure to press the Bell Button to get an instant update.
Thanks for watching the "Dream Finder" videos. Hope you enjoyed watching my video.
"DREAM FINDER" is all about DIY, lifehack, tutorials, and other awesome ideas that pop into my mind. I always strive to upload the best quality content to my channel.
The best part of my channel is that I transform the old and useless waste materials into a new creative and daily need useful material and we upload a new video every day.
Every DIY tutorial is very easy and simple to follow, perfect for beginners, explained step by step, and achievable at home!
For business inquiries: theworldbestoffer2@gmail.com
If you like the video then you hit the LIKE & SHARE button and let me know Your valuable feedback and comments in the "comments" section.
Please SUBSCRIBE to my channel and make sure to press the Bell Button to get an instant update.
SUBSCRIBE for More Videos: / dreamfinder
My More Channel available Here.....
1. "TechWorld BD" Tech Videos are available here. SUBSCRIBE: rb.gy/8jhixl
2. "CraftZone" includes DIY Life Hacks Experiments Tricks videos. SUBSCRIBE: rb.gy/ky64ql
3. "Channel Eye" is lifestyle tips and tricks Video Channel. SUBSCRIBE: rb.gy/3twb81
4. "The VillFodd" is the lifestyle & food styles of the people in our village. SUBSCRIBE: rb.gy/3twb81
Face book Pages:
1. / all-rounder-bd-4798426...
2. / the-villfood-101381661...
3. / dream-finder-169133188...
#howtorepairlaptopbattery #Laptop_Battery_Hard_Reset #repairlaptopbattery

Пікірлер: 188

@somaday2595 2 жыл бұрын

Good step by step battery rebuild video. The pin breakout notes are a good, useful addition. For anyone trying to activate the BMS on a Trimble 31CR19/66 battery module, (for a Trimble GeoExplorer), connecting the battery 12+V terminal to Pin 6/ +V on the battery module, it does not work. (Maybe someone else trying this on this Trimble module will be saved some time and frustration.) At the start, the three Li+ batteries inside the module measured 1.5V each, but the BMS had apparently shut the charging down completely, and across Pins 6 (+) and 8 (-) were 0V. (These pins are labeled on the module.) When connecting to the Trimble power adapter, the module charging light showed green almost immediately, (no amber at all); potential across Pins 6 & 8 = 12.5V; potential across Pins 5 & 8 = 15V; unplugging the power adapter, the potential between Pins 6 & 8 and 5 & 8 returned to 0V. Each cell was then charged to 4V one at a time while still connected to the module circuitry. Pressing the PUSH for battery module status showed almost full charge; potential across Pins 6 & 8 = 0V. Briefly connecting from the Li+ battery 12+ to Pin 8 did not appear to reset anything. Sometime before this, when plugging in the power adapter, the module power light would briefly show amber and then change quickly to constant green, but not charging.

@franklaufkoetter2133 10 ай бұрын

Super, thanks a lot. I tried it with an old Asus EEEPC-Battery and it worked. Great. For security reasons, I used a 20 Ohm Resistor instead of short-curcuiting...

@DreamFinder 10 ай бұрын

Great 👍

@sonny8m Жыл бұрын

I've tried to find a way to RESET the laptop batteries for a LONG time. I just did FIVE of them. This is a GREAT HACK for me. Thank you very much.

@DreamFinder Жыл бұрын

it’s a method of reset laptop bms, I've explain that this method not work all bms, thanks.

@mangalsinghbhati1 Жыл бұрын

@@DreamFinder yes this method not working for my BMS 6 cell battery

@SHK-SPORTS11 6 ай бұрын

Best Laptop Battery repair video I have seen yet. Great work.

@DreamFinder 6 ай бұрын

Thanks bro

@antoniob9349 2 жыл бұрын

Hola. El conjunto de baterias debe estar cargado al 100%? A mi no me ha funcionado. Alguna otra solución por favor? Gracias

@majidsayed8 3 жыл бұрын

Keep up the good work, nice video.

@uniquedesigns4544 Жыл бұрын

Yes it is the correct way to change the batteries but the reset method is wrong and won't do any good unless the IC on the BMS is reset by ic reset tool because the ic holds information up until the battery cells dies and that information can only be reset by using a reset tool and a program

@mangalsinghbhati1 Жыл бұрын

More information?? Please my battery cells showing 3.2 volts but BMS not output

@uniquedesigns4544 Жыл бұрын

@@mangalsinghbhati1 the BMS holds the information of the previous battery ...it wouldn't work if you just replace the battery...you have to have BMS IC reset tool ..which is more expensive than a brand new battery..so it's better to just replace the full battery

@alextrezvy6889 8 ай бұрын

@@uniquedesigns4544 "ic reset tool" // Any suggestions about this tool? Can it be emulated with Arduino?

@valdomirosilva4127 2 жыл бұрын

Thank you, very good the video

@sreekumarUSA Жыл бұрын

Thank you, my good friend.

@Swenser Жыл бұрын

For those BMS protected problems I guess you could include new BMS charge and discharge board inside the laptop. Windows fuel gauge won't work because there will be no comms with SIO chip but at least practically can work again.

@samwikiwiki7420 2 жыл бұрын

How you sold the battery plz what other things used and made smoke ist

@FoodStreetRider 3 жыл бұрын

which cell is best of LENOVO T430 LAPTOP battery ? how much MAH and what is the CONFIGURATION of Cell is best ?

@chainzchainz7757 2 жыл бұрын

thank you. i am going to try this method this week

@constantinepapanikolaou7051 2 жыл бұрын

Thank you so much for your time to answer to my post. Three days ago I managed to resolve the problem which - en passantt - was not a matter of heat, bad connection or faulty circuitry. Remedy had to do with uninstalling the drivers of Microsoft AC Adapter and Microsoft ACPI-Compliant Control Method Battery. If you want me I can translate the few steps and send therm back to you to have them handy. Just let me know . . . Have a nice day ! Constantine from Thessaloniki, GREECE

@DreamFinder Жыл бұрын

Sure my dear bro

@oyinloyeadekunle7714 Жыл бұрын

I need it too sir

@constantinepapanikolaou7051 Жыл бұрын

@@DreamFinder I need to know the OS version of the laptop where the battery clips on, so as to describe - the best possible way - the simple steps. Also, let me know if you need a translation to a certain language. Sorry for not answering earlier, but I could not. Constantine

@constantinepapanikolaou7051 Жыл бұрын

@@oyinloyeadekunle7714 I need to know the OS version of the laptop where the battery clips on, so as to describe - the best possible way - the simple steps. Also, let me know if you need a translation to a certain language. Constantine

@DreamFinder Жыл бұрын

Ohh nice.

@seidumomoh7791 3 жыл бұрын

Thanks, this is excellent

@DreamFinder 3 жыл бұрын

You're welcome!

@victorzhao2769 Жыл бұрын

Excellent ! Thanks so much !

@DreamFinder Жыл бұрын

Welcome bro

@Pulverrostmannen Жыл бұрын

A rule for repairing litium batteries is to never use batteries of different age or capacity because they will be out of balance when they are not matching. either will the BMS shut down the battery during charge or discharge when the weakest battery reach high or low voltage. and worst case total failure. And no, it won´t be able to balance the voltage correctly if the difference is too big. sure if you would measure and match all batteries with analytic testers it might be close enough, But if you spend this much time on a battery then there is no reason not to change all the cells together and repurpose the working cells for less accurate tasks instead

@tompsheridantsheridant7354 Жыл бұрын

THE LETTERS **B M S** STAND FOR **B** OWEL **M** OVEMENT **S** MELL

@Pulverrostmannen Жыл бұрын

@@tompsheridantsheridant7354 or Bad Mouth Smell ;)

@rodrigodiaz7167 6 ай бұрын

but waddabout all new cells, einstein?

@Pulverrostmannen 6 ай бұрын

@@rodrigodiaz7167 If you change all cells to new equal ones you should be fine. Then it should perform like a new battery. Einstein did not know anything about Lithium Ion batteries so in this regard I know this specific topic better than he did

@rodrigodiaz7167 6 ай бұрын

@@Pulverrostmannen LMAO yeah i think some of these batteries always die once you unweld them though bc of the BMS. i wish the state banned all these battery packs and would force manufacturers to let you just put standard cells like on an old torch I'm so full of programmed obselescence. your whole pack dies just bc one cell worth $1 died and you are forced to pay $25 for the pack and trwo 2 perfectly fine cells into the ocean. sometimes they BMS just fails for no reason even with good cells.

@Pavankumarhs 8 ай бұрын

i tried in acer e5 laptop battery but no use it advance bms locked itself need to unlock by software

@farhadnagiyev3244 5 ай бұрын

Even if it shows voltage on outputs, battery couldn't hold current normally. Only programming.

@ownshv Жыл бұрын

професинальный римонт батареи, восстановленным паяльником👏

@wilsonmarinmontoya4318 Жыл бұрын

Gracias.

@ishtiaqali6955 Жыл бұрын

he tried his best but the laptop will not recognise this battery because after adding new cells to the battery there is a IC on the circuit which will need programming too like bios ic..after programming the ic the laptop will recognise and recharge the battery otherwise no mater how the cell are changed from the oldest to the newest with full voltages the laptop will reject it as it is the old battery

@packratswhatif.3990 Жыл бұрын

So how does one reprogram the battery pack IC then ?

@ishtiaqali6955 Жыл бұрын

@@packratswhatif.3990 need special programmer for this purpose to programme the BMS circuit of the battery pack..

@nishanthasubasingha6284 Жыл бұрын

Yes....your concept is correct..need to be reprogrammed.......otherwise the battery pack will not charge through the BMS chip..or...will not cutoff the power to the battery....so it's will be rescue....

@anthonymickle4103 Жыл бұрын

No wonder none of them show that they put it back in a laptop and it works...

@stipe9609 Жыл бұрын

What if this reset method doesn't work? I have HP 4 cells battery...

@orac229 2 жыл бұрын

Thanks. Do you know any source for buying the board only?

@DreamFinder 2 жыл бұрын

Aliexpress or you can search local markets at your location

@lazystrike6835 3 жыл бұрын

very well done

@karim181 Жыл бұрын

very good job thanks from france

@DreamFinder Жыл бұрын

Welcome bro

@AdityaKumar-to4ef 2 жыл бұрын

Sir 3.7 volt ki battery ka kya mAh hoga? Mera laptop battery me 4 lithium cells lage h Puri battery pr 14.6 Volt aur 2670 mAh likha h

@han-hh9tl Жыл бұрын

Will this method work for acer 3100 8 years old laptop Windows 7?

@shanimalak90 2 жыл бұрын

Sir betry k sel chang krke Leptop me.red light show hoti he betri charg nhi krta .jo apne.btaya he aise krne se leptop me cahrg hoga

@janusfire 3 жыл бұрын

Nice work sir...please, how it´s identified the BMS terminal???. Can the reset be done from the outside, without opening the box??? Thanks and best regards!!!

@DreamFinder 3 жыл бұрын

Not possible

@AbbasAli-mc2ru 2 жыл бұрын

@@DreamFinder background music is irritating

@mangalsinghbhati1 Жыл бұрын

Possible with multimeter generally terminals are always on last side left or right if you check from multimeter then you touch it wrong it will show negative

@AsifEjazOfficial 10 ай бұрын

It is possible. If you have a long battery not this one square. Create a hole on both sides of battery and do what ever you wants

@n1kkri 2 жыл бұрын

I want to charge a Dell D600 battery. In order to measure voltage I needed to ground the SYS PRESET pin. I can discharge the battery but I can not charge the battery. No current flow enters the battery. However I can charge the battery when using the laptop. Do I have to do something to one of the other pins to allow charging?

@DreamFinder 2 жыл бұрын

Input and output same pin, most of the bms not support

@hitmanyt2021 Жыл бұрын

hi there are 5 pins in the dell battery to unlock charging you have to connect the 4th pin with the ground then charging will work. 1st,2nd,3rd, pins are negative, 4th is the terminal pin to enable charging 6th is data 7th is Clock 8th and 9th are voltage + possitive. thank you

@n1kkri Жыл бұрын

@@hitmanyt2021 Could you please confirm the battery pin out. I have a Dell D600 laptop battery Type C1295. It has 9 pins. I looked up a chart with a picture and the pins you mentioned don't match. The pin out shows the battery with the writing on the battery facing up and the connector to the left.

@rodrigodiaz7167 6 ай бұрын

@@hitmanyt2021 based. i found out exactly what you said some years ago. i woder if the same goes for asus since i have to fix an asus battery now

@pianistmrinal 3 жыл бұрын

How to buy BMS?

@barbadolid5170 Жыл бұрын

outstanding work

@DreamFinder Жыл бұрын

Thanks

@hasanali-ht2kq 3 жыл бұрын

Hello How did you charge it? Only by connecting - & + 12V battery to (- p & p ++)? I whant charge it whit 12 volt adapter Should i connect the negative to pin 5 (SCL)with a jumper? The battery model is j1knd

@DreamFinder 3 жыл бұрын

Some of battery BMS module will work this charging method, but most of not work

@hasanali-ht2kq 3 жыл бұрын

@@DreamFinder Thanks How can i send you BMS MODULE picture? Please right your email

@DreamFinder 3 жыл бұрын

no need bro, 1st you check +,- output, if show v, then you can charge this process

@janusfire 3 жыл бұрын

@@DreamFinder what you mean by "...if show v..."?, thanks.

@ric2840 2 жыл бұрын

@@janusfire ift it shows volt...

@Harry001by7 Жыл бұрын

Thanks for great video. I tried but my Dell bms not giving output even after resetting it. After resetting the bms bms batter level indicator LEDs (5) blinks for couples times and goes off like 10101 by pressing switch. Any help ?. + + C D B S A G G are pins.

@ldsman1global587 Жыл бұрын

Buy a new battery pack... :)

@pilotalibey 5 ай бұрын

👍 perfeckt........thank you...

@DreamFinder 5 ай бұрын

Welcome

@shahzaib715 2 жыл бұрын

hi, bro mn ny laptop battery folio 9480m ki battery change ki and work kar rhi hay but timing issue hay still lithium ki new 4 batteries lagyi to ab b Cycle count: 1048 / 1000 ye day rha isko kesy reset karun please help me

@servidor712 Жыл бұрын

Thanks Brothers 🎉

@DreamFinder Жыл бұрын

Welcome bro

@nageshtagadur Жыл бұрын

purpose of music,....in the video,....?

@kasunjayasinghe2944 3 жыл бұрын

Good one

@DreamFinder 3 жыл бұрын

Thanks

@nunungnurahim4525 Жыл бұрын

👍👍👍👍👍

@srikarg8175 2 жыл бұрын

Can we change complete bms circuit , all my batteries are good still not working

@DreamFinder 2 жыл бұрын

You can use bms, but Doesn't use at Laptop

@rehmatbutt5586 2 жыл бұрын

wow

@vermamaujmasti1450 Жыл бұрын

Very nice good job

@DreamFinder Жыл бұрын

Thank you! Cheers!

@jeffreybower5959 10 ай бұрын

repair at your own risk or you will end up destroying them!! its better to buy a new one!!!

@jumantosmk125 Жыл бұрын

lokasi mana bang, biisakah menerima service baterai lenovo?

@constantinepapanikolaou7051 2 жыл бұрын

Dear DREAM FINDER, My original Qosmio X505 laptop Li-Ion battery (Model No PA3730U-1BRS) is coming to an end and I purchased a new one of the same model that is not recognized by the laptop, when clipped on. Powering on the laptop from the mains (through charger) it starts with a yellow blinking led and hovering on the battery icon (right side of task bar) shows “Battery plugged in charging. After 6 - 8 minutes it shows “Plugged in and not charging”, to end up with a “battery not recognized”. On restarting the laptop the battery icon shows “Battery not detected” with a red X on the icon. Watching your video carefully I understood that - correct me if I am wrong - the battery should be “activated” by the factory. So, my question, though I imagine your answer, is if I could activate/reset the BMS circuit myself, without opening the battery shell. Constantine

@DreamFinder 2 жыл бұрын

Reset not required of this problems dear. It’s may heating or circuit issue or missing from the battery charging slot. First clean everything carefully and plugin.

@constantinepapanikolaou7051 2 жыл бұрын

@@DreamFinder Thank you so much for your time to answer to my post. Three days ago I managed to resolve the problem which - en passantt - was not a matter of heat, bad connection or faulty circuitry. Remedy had to do with uninstalling the drivers of Microsoft AC Adapter and Microsoft ACPI-Compliant Control Method Battery. If you want me I can translate the few steps and send thrm back to you to have them handy. Just let me know . . . Have a nice day from Thessaloniki, GREECE Constantine

@user-vl2rp7gj9v Жыл бұрын

جيد

@syedyabishali8122 Жыл бұрын

3.7 volt ki kitne mah ki battery cell hai each?

@DreamFinder Жыл бұрын

2400 to 3000 maximum

@aeperff.1201 Жыл бұрын

Video birebir uyguladım sonuç alamadım yardımcı olur musunuz. Türkiye selamlar

@anak1301 Жыл бұрын

Thank you. I am going to try this method next week.

@DreamFinder Жыл бұрын

Best of luck!

@frankyzn Жыл бұрын

I want to recover 2 laptop batteries and use them as a power bank without modifying the factory circuit, can it be done?

@DreamFinder Жыл бұрын

Laptop BMS not supported as a p bank without modify

@rasmusengellhansen4118 Жыл бұрын

I have have a 4 cell battery AL12A33, almost as yours 4 cell you show. Mine did't work, did yours 4 cell

@DreamFinder Жыл бұрын

Try your Best Bro

@ABDOLLAH-fx1ip 5 ай бұрын

Good job!

@DreamFinder 5 ай бұрын

Thank you! Cheers!

@pooooja26 Жыл бұрын

battery reset tool required

@NatureScenicViews Жыл бұрын

I have my battery opened and checked but all cells were okay but still it is giving me red and white blinking indication showing that battery is low and not charging. what the problem is?

@DreamFinder Жыл бұрын

Most of the BMS not work this method

@NatureScenicViews Жыл бұрын

@@DreamFinder so what should to do?

@arnoldshrivastava8114 3 жыл бұрын

This method doesn't work in dell latitude3550.....any other trick plz

@gaz1tinsley 2 жыл бұрын

How do you fix a Dell Alienware M18x R1 battery that won't charge ? Or where is the cheapest one I can buy ???

@thomaskallmyr Жыл бұрын

Interesting

@DreamFinder Жыл бұрын

Thanks

@henryng439 2 жыл бұрын

this bms reset didn't work on my 27++ thinkpad slice battery

@DreamFinder 2 жыл бұрын

Sorrow matter

@karinrabbat5952 Жыл бұрын

I have done it.. I connect a cable from the main positive of the battery to the positive of the external connector and, it does not work. it's from a dell laptop

@loopvogel01 Жыл бұрын

Ofcourse it will not work, this movie is fake. You can not switch some cells because the internal resistance is different an can get into fire. But the guy who made this video does know anything about batteries or electronics.

@vintilis1 2 жыл бұрын

this reset works only BMS Board ?

@DreamFinder 2 жыл бұрын

Everything

@KamenRider82 3 жыл бұрын

why in my termnial only 3v? Extremes bateries 12v...

@janusfire 3 жыл бұрын

Your batteries are ok. each internal pair it´s near 4 volts....4+4+4=12 volts. The pack BMS blocks the passing of current.

@jeraldleung6009 2 жыл бұрын

Need special device for resetting the batteries' counter.

@DreamFinder 2 жыл бұрын

Yes n thanks

@n1kkri 2 жыл бұрын

will this work on Dell battery?

@DreamFinder 2 жыл бұрын

Input and output same pin, most of the bms not support this formula, but you can try.

@AmarjeetKumar-ku4pc 2 жыл бұрын

Sir mera dell ka laptop h usme mai cell Cheng kiya hu but oo battery me bms me supply Nahi show kar raha h please help me

@DreamFinder 2 жыл бұрын

Most of laptops battery doesn’t show output directly, company tricks maintain battery bms. So don’t worry bro. If this formula not work then u have to change or replace new one.

@AliRaza-to7nr 2 жыл бұрын

nicevv

@DreamFinder 2 жыл бұрын

Thanks

@frankyzn Жыл бұрын

What are the charging points for that battery?

@ndukweonuoha 3 ай бұрын

Nice job I want u to teach me how to fix laptop battery how do I contact u directly

@DreamFinder 3 ай бұрын

Ohh! Thanks for your comments.

@healer1000040 2 ай бұрын

when there is insane background music, understand it is uploaded by an Indian.

@DreamFinder 2 ай бұрын

Nice thinking dear. But I'm from a very small country in Bangladesh.

@muhammadarif9994 Жыл бұрын

This trick (battery reset) does not work on my laptop battery (having nine pins) and still no out on battery terminal. Guide me further

@DreamFinder Жыл бұрын

It’s not applicable for all types of battery dear

@rajeshnair216 2 жыл бұрын

How to find BMS

@DreamFinder 2 жыл бұрын

Laptop Battery BMS not available in Market

@charismichalopoulos8830 2 жыл бұрын

Laptop Battery Factory Reset doesnt works for hp compaq 8710w

@DreamFinder 2 жыл бұрын

Ohh sorrow matter

@rohitsinglay 3 жыл бұрын

My all batteries ok but no output and doing same process but still same problem

@DreamFinder 3 жыл бұрын

Uff.., it's a really sorrow matter my dear. Some BMS not working this process. However try this process. If it doesn't work, not a other solution. Please don't throw your old batteries, next any time you can replace damaged battery.

@rohitsinglay 3 жыл бұрын

@@DreamFinder hmm 👍👍

@simic-ognjen1312 3 жыл бұрын

not working on new bms texas instruments chip...

@janusfire 3 жыл бұрын

@@DreamFinder It´s possible to bypass the BMS???

@bolgartopper2791 2 жыл бұрын

@@janusfire NO!

@jessstuart7495 Жыл бұрын

But how do you reset the IC ????

@vinczejani Жыл бұрын

he did not reset. to do a reset you need a usb battery tool. Its got a controller with i2c communication by shorting something to +12 only causes more trouble, So he just did something and everyone here is happy. That methode never works.

@raselimran58 Жыл бұрын

Output dc and ac show 10 volt what is damaged

@DreamFinder Жыл бұрын

Need to charge full may be.

@raselimran58 Жыл бұрын

@@DreamFinder sir not charging laptop charge signal light is up down showing what is problem

@raselimran58 Жыл бұрын

@@DreamFinder sir not charging laptop charge signal light is up down showing what is problem

@lenco5994 Жыл бұрын

What’s BMS?

@DreamFinder Жыл бұрын

Battery management system for li-ion battey

@rrkothari3847 2 жыл бұрын

Sorry, my BMS is still not working.

@DreamFinder 2 жыл бұрын

Extremely Sorry bro

@MALIKFAMILY783 3 жыл бұрын

Battery mil jayegi

@MALIKFAMILY783 3 жыл бұрын

Mere pass h

@jozsiolah1435 Жыл бұрын

Games played on battery can fix this problem, ensuring that the - won’t be charged with +.

@SysAdminEX Жыл бұрын

A REAL DANGER OF FIRE!!, applying tin with the soldering iron directly on the cell and without changing the nickel, without adequate protections, if you want to have a real risk of fire in your homes, go ahead.

@DreamFinder Жыл бұрын

Thanks

@NatureScenicViews Жыл бұрын

I did this but no fix? Am I wrong?

@DreamFinder Жыл бұрын

Some BMS not work of this method bro.

@NatureScenicViews Жыл бұрын

@@DreamFinder should I change BMS?

@shanesmith1786 10 ай бұрын

Next day your house is burned down lol

@DreamFinder 10 ай бұрын

Ohh my god

@vugarmirzaliyev7875 Жыл бұрын

This reset method is wrong and will not help at all.

@DreamFinder Жыл бұрын

Yes, Thanks

@peterwolfik5827 Жыл бұрын

Haha….good luck, this reset method doesn’t work, why don’t you show if the laptop accepted the reworked battery or not? without a reset program and tool, you can’t reset the IC on the battery pack

@DreamFinder Жыл бұрын

Thanks, but the laptop of this Battery wasn’t available this time my dear.

@fereerfswe8195 6 ай бұрын

@user-my6zz8db3p 3 ай бұрын

Бесполезная трата времени😄

@jhliton6755 Жыл бұрын

this is just a process to show people a video. whole process is super stupid without having knowledge about 18650 battery. he mixed different specification battery with older group which is not good idea. and he just make it give output which those FAT on but BMS ic working or not working, he don't show it on video. this is just a toy video.