How To Make 3s 40a Lithum ion Battery Pack.
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- Опубликовано: 17 ноя 2022
- In this video, i will build 3S 40a li-ion battery pack using Lithium ion Cells.
Item required for this project are :
1). 12pcs of li -ion cells.
2). 1pcs (BMS 40a).
3). nickel strips.
4). spot welding machine.
5). some good quality wires.
Thanks for watcing.
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Music name :
Tropic Fuse - French Fuse
#18650
#3s 40a battery pack 
Хобби
The previous commenters are confusing Amps with Amphours.
For example: A typical Samsung 30Q 18650 cell has 3000mAh of capacity. (3 Amphours). However, it can deliver 15 Amps of current to a load.
Some people mistakingly call it a 3 Amp cell, instead of a 3Ah cell.
Other people call it a 15 Amp cell, because it can deliver 15 Amps continuous to a load.
Please understand the difference between Amphours…. And Amps.
Amphours is a measure of how much CAPACITY a cell contains.
Amps is a measure of how much CURRENT the cell can deliver. Those are two completely different things.
Some commenters clearly don’t know the difference!
Now, I can calculate the Amphours of the cells in the video to be 2 Amphours fairly easily. However, I don’t know the current delivery of those cells in the video.(Amp rating)
I looked up this 18650 and found it on Ali-express. It has a maximum current delivery of 2C. (That means 4 Amps for these cells).
Ok, so each cell can produce a max of 4 Amps and there are four in parallel… so this is a 3S4P design, 8Ah battery with a maximum current delivery of 16Amps.
Please do your homework before commenting.
Great project
Parabéns você me ajudou muito nesse vídeo. Agora vou fazer a instituição pra bateria do meu projeto de som 😊
Thank you so much for your feedback
Nice video, thanks :)
Very nice video
Nice video
Hola tienes algún vídeo tutorial como hacer el soldador de punto electrónico inalámbrico
Полная шляпа 😇👍для делитантов ☝️
good😃
How to get your tatal bit white ? My one everytime getting dark
Oke banget
Great job, I'm planning to do the same but I have mixed of new and old batteries. Some of them with 2600mah used and some are 3000mah new. Is it ok to put them together ?if so how I supposed to line them up. Thanks
Hi There. If you want you can use different (mah) cells . But I suggest you to use same (mah) cells for best performance. And also keep in mind to charge individual cell so it easy for (Bms) to manage balance charging for long time use.
Note good Aapne to is cell k bich me gab to rakh nahi kyoki yh blast bhi ho jate ha .
Most strange, I followed your video and constructed a pack identical with yours. After balancing and charging I found that 8 cells balanced perfectly at 3.8v and the remaining 4 at 3.4v used the same balance board as you did. All cells were spot welded and had good connection. Any Ideas ?
Hi there I seen your comment and I think weather your BMS Board is broken or you have done wrong wire connection
Is there a way you have to connect in order to get the bms to activate? I did mine and the input/output + and - don’t have 12 volts as if the bms is not activated
Hi there if your BMS is not giving output please check your connection and also check the order of your battery connection you can. Follow my video and then also your didn't get output then take a 12v lithium ion battery charger also remember that you connect your BMS then you have given in put of 12v charger to your battery pack for 2 to 3 minutes after that check with multimeter that BMS is giving output or not . Still you don't get output please replace your BMS or lithium ion cell . Thank you...
Sir size of the heat shrink u used..? it is 120mm..?
Hi there the heat shrink that is used in this project are 1) 130mm ,2) 160 mm.
Hello my friend. Watching this video of yours, I also tried to make this like your battery, but something went wrong for me. Can I get your help for this failure of mine? What type and capacity of charger did you use to charge this battery of yours?
Hi.their to charge this battery pack I use my ATX power supply.
Hum ko chaheye 1 adad battery 48v 12ah kiya price ma ha
Bro don't use glue gun bro it can harm your battery 😂
Hello my friend, I also put together the same battery after watching your video, but when I tried to mess with a spot welding machine that works on 12v I didn't get results, why, do I need to add something else between powering the machine or, can you write me an answer? Thank you in advance.
Hi there. Did you use lithium ion battery pack or 3s lipo battery pack if you are using lithium ion battery pack I will suggest you don't use this 3s lithium ion battery pack because it doesn't have that much power that you can use in spot welding machine. The alternative is use 3s lipo battery pack with high (C) rating for best results. Thank you...
@@diytechmaker I used Laptop batteries that are working and a 3S-40A BMS card
@@Volkan69ful can you explain in detail
@@diytechmaker My friend, if I could send you pictures, what I'm telling you, maybe you would understand me quickly, I don't know the English language very well, so I'm struggling through google translator, I guess there is a misunderstanding in the words.
@@diytechmaker By the way, I would like to thank you for your willingness to help, very kind of you, thank you.
उसे चार्ज कैसे
40A?
How do you count your capacity?
Hi , their I am using 3s 40A bms ( battery management system) board .
La capacidad se suma con cada celda en paralelo, ahi uso 4 celdas en paralelo, si cada celda fuese de 2000 mah, en total 8 amperes, si fuesen de 3000 mah se suman 12 A, lo que indica el BMS es que soporta hasta 40 Amperes
how many amperes does this battery have? Thank you
almost 30 because 1 battery 2200
Hello friend, have you tried the 12v spot welder, and how does it work, are you satisfied or? Can you write us the address of the link of those parts you used for assembly? Thanks in advance.
Hi there. Thank for your question can you please tell me which parts do you want to know about (battery parts) or (spot welding machine parts) please tell ...
@@diytechmaker Thanks, I want to make the same battery as you. I have batteries from old laptops, I need the dimensions of those metal strips with which you connected the batteries, and the dimensions of the protective cover.
@@diytechmaker I recently bought a punting device that needs 12v and at least 20 A, since the battery from the car is not practical for such work, I decided to make something like this battery as you showed. That's why I asked you if you tried it, but you haven't answered me yet, so please answer me, ok. Thank you in advance.
Hi there. Thanks for your question the material that I have used in this project are-
1) Nickel Strip : 0.15mm X 8mm (1P)
2) H- Shape Nickel Strip : 0.15mm X 27mm (2P)
3) PVC Heat shrink sleeve 160mm .
@@diytechmaker, Thank you my friend. I'm going to order it now, so when I get it and I'm done with it, I'll talk to you, ok. Thank you once again.
Does it have 40 ah power
Continuous Discharge Current: 40A
Continuous Charge Current: 20A
I would use this battery for a spot welder, can I or not?
Can you explain in detail.
@@diytechmaker Do you mean something like this or?
@@Volkan69ful if you want to this battery pack for spot welder I suggest don't use this battery pack . You can use 3s lipo battery which have High ( C) rating for your spot welder.
@@diytechmaker, Ok, thank you my friend. See you soon, have a nice weekend. 👍👋
Merhaba. Bu bataryayı nasıl bir devre ile şarj ediyorsunuz?
Hi there . I use my ATX POWER SUPPLY to charger this battery pack.
@@diytechmaker Murata 21700 3.7 volt 4000 mah pilleri kullanarak 3s10p akü yaptım. Yani 12 volt 40 amperlik bir akü. Bu aküyü nasıl bir devre ile şarj edebilirim? Xl4016 olurmu?
Yes you can use this module to charger. Your battery pack.
@@diytechmaker teşekkür ederim
How to charge it please? Is there any way to charge it without imax b6 (balance charger)?
Hi there , You can use any 12.6v power supply to charge this battery pack .
@@diytechmaker is it safe? What about heat and over charging?
@@MrIMacro yes it will heat but it is normal to use . To protect your battery pack from over charging use (BMS) in your battery pack .
@@diytechmaker Thanks a lot. I am asking because i see a lot of people using imax balance charger to charge their battery packs even though they have a bms already installed !!! I don't know why they are doing that??!! Maybe the bms is not enough for balancing each cell while charging.
@@MrIMacro your welcome. Yeah some people use imax balance charges to charge their battery pack because it have some good protection features for various battery but it is expensive too . Were as good quality adaptor can perform same thing in cheap price but the main thing is to use good quality (BMS) board in your battery pack.
Agar is battery pack ka charge khatam hota he ya kam hoga to kese charge kar sakte he please batao.
Hi there. You can charge this battery pack using any 12.6v adaptor.
usalo en una laptop aver cuantas horas dura
Can you write in English.
@@diytechmaker
use it on a laptop to see how many hours it lasts
Abi kanalı yeni mi açtın 🇹🇷🔥
Yes brother , do support
🫢12v 8Ah battery pack
Ele vai usar o bms de 40a pra da pico
Can you measure the Amperes? 40Amp is unrealistic
Continuous Discharge Current: 40A
Continuous Charge Current: 20A
@@diytechmaker you need to show it in the video we need proof use your multi meter and test it if its true, we need to see it
I looked up this 18650 cell on Ali-express. It has a max charging rate of 0.5C. That translates to 1 Amp (each cell) for these cells.
You have four cells in parallel, so max charging for this 3S4P design is 4 Amps. Anything higher than 4 Amps and you will damage the cells and possibly start a fire.
40A????
Hi , their 40A mean the bms circuit board that I have use can deliver 40A of maximum current .
it's hardly a 6A battery pack 😑
This is not a 12v battery 3x 3.6= 10.8 it only reaches 12v when fully charged.
40 A ????????
Hi, their 40A means the circuit board that I have use BMS (battery management system) can deliver 40amps of current
Just 3amp not 40a 🤣🤣
IT IS A FAKE mah battery If batteries are of 2000mah then max AH of battery is 8AH or if batteries are of 3000mah then max Ah of battery is 12AH.
You have right.
They are 2AH cells, it shows on it 3.7v, 7.4 Watt. He's using a 40 amp BMS, that's the max current he can draw.
This all fake thos li on battery are not any panasonic or samsung that have 2.5 or 3 Ah .it.s a total indian lie
You are right this is fake
100% right 12cells 3s 4p never be a 40amp battery ever.
How on earth 4 parallel 18650 has 40Ah 😮
This is 4s not 3s
Hahah 12 cells and he making 40 a battery bro your battery is just 6 a
There are ZERO 7400mAh 18650 cells. The highest genuine 18650 cell capacity is I think now is around 3800mAh. It is a rebranded old cell by Chinese companies that lie about capacity.
he never said 40ah, he said 40a which is the maximum current output that the BMS can handle not the amp hour of the battery
@@cursed2889 I did not say he said it but if you look at the label on the battery (0:15 second on video) shows 7.4Wh which is not a reality.
wrong click bait title, wrong wire color for the first positive (4.2V), bad wrapping, no fuse, no explanation just annoying music --> down vote