This is just a seven cell, 24v battery, butt three wide, yeah? Off of the same bms. I was unaware you could do that. Excellent. I need some fat-assed batteries for the boy's electric scooter. Thank you random stranger!
My only suggestion will be to add the gasket insulator same you use on the side of the battery on the top and bottom or fiber glass insulators. Other than that looks amazing.
Thanks for comment. Yep, today we use fishpaper for all sides, battery pack is wraped to shrinkable foil like in video but on sides we use insulator glue for waterproof efect.
I though you only needed 6S for 24v... I am confused, if these are 3.7v nominal voltage that would make it 25.9V and 29.4V fully charged. I am thinking of building the same for my scooter that uses two 12в lead acid batteries.
Hi, in battery world is 24V for 6S and 7S...like a 48V is for 12S and 13S. Same 60V for 16S and 17S. It's rounding. For replacing 2 12V lead acid batteries is good choice 7S connection.
Also those 12v x2 lead acid battery type scooters do not charge or hold charge for very long due to the electric motors being very power hungary. Bsst to just buy li ion scooter with brushless wheel motor.
@@fraserm803 The scooter was free, I figured I could make use out of it if I build a Li-Ion battery for it. The sad part is when my son was 4 it was perfect for both of us to ride it. 3 years later he kind of outgrew it and I am sad I put this project for too far long on a backburner :(
sorry but can't you explain what those black battery holders and the various stickers you stuck are? And then there would also be that circuit board you plugged in later. Can you put the links where you found the various materials and tools you used to assemble the battery pack? Thank you
Nice build, very clean, thumbs up! But 2 comments from my side: -At 5:10: Too dangerous in my opinion: While welding on the second side of the battery, there should be some tape for isolation on every cell you are not working on at that specific moment. If you missplace your strips left or right or one strip falls down on the pack while handling it or something like that you´ll get a short. Also if there is a metal strip or anything else conductive left getting under the pack. -Why are you using black for the positive discharge wire???
@@mcells_batteries my battery is charged to 29.4V. The BMS is like yours, but it turns off for some reason when the battery is discharged to 25V. can it be a faulty BMS?
@@rockefelleragent1357 I just wanted to know that is it suitable and safe to use with inverter because the discharge rate will go insanely high and 18650 can not be discharged more than 10 or 15amps cont.
@@GulftodayT Samsung 40T 21700 batteries might be better way to go... as they can handle very amp discharge (30+A continuous). Are you planning on powering large electrical appliances like a heater, AC, etc?
@@rockefelleragent1357 yes I build a 24v 100ah battery with 18650 cells for my home AC and water pump, but unfortunately the damaged from charging and discharging process because 18650cells don't have that ability to work with inverter. but I will try to make a new one with life-po4 like 21700
@@GulftodayT If you don't mind me asking are you using solar panels to charge your battery to power your home appliances like AC or heater? If so, can you tell me what size panels you are using and how they are connected (series or parallel)? What inverter are you using? What is the input voltage required for your AC air conditioner (or heater)? As for the 18650 battery cells they will do fine powering your unit through inverter if they are quality name brand new conditioned cells and set up right. I don't recommend using LIFEPO4 batteries as they have lower limit of operating voltage range and cannot handle high amp charging and discharging. Samsung 40T 21700 may be the best battery to go with as they can handle high charging and discharging, and it doesn't lose charge in freezing/below-freezing temps, extremely efficient and reliable.
That lap solder joint will reflow under high loads and let go, in my experience. I encourage you to consider a linesman splice or similar mechanical joint under solder.
@@matejsuchy4178 Hey I was wondering if you could help me with a problem that I have, I have tried searching for a solution on the Internet but to no avail How do calculate the total capacity of a battery that is connected in series with a different battery with different capacity Let's say I have 36v 10s 7365Ah + 25v 6s 10Ah = 60v total, how can I calculate the total capacity for this configuration?
We cannot get 24 volt using 3.7 volt cells. Correct volts should have been shown with a multimeter at end. Apart from that, the hand work is impressive, no doubt.
I have created a 7s 15 p battery pack with bms, and tried to use it with apc ups.. It just trips when power goes.. When i use it with existing battery in parallel it works fine
can you send me the schematic diagram of the connection of wire from the batteries to BMS and charger ? Im going to build a batter pack for my electric bike? please reply immediately thanks
Great job. Worked systematically. They say if you cut the balance leads unevenly short and long, there will be difference in resistance and the cells will be charged unevenly. Is it valid?
@@mcells_batteries thanks for the fast replay. If my device has a nominal voltage of 24V VDC, would a 7S configuration be suitable or 6S is more recommended?
A physical barrier more than kapton tape would be preferred for the BMS/balance cables. Something like barley paper but this is a really minor thing to point out. The fact that you're using kapton paper is enough honestly, RUclips is full of Indian kids using cells that look like they died 10 years ago and have been rusting away at the bottom of a river ever since, put together with zero capacity, IR testing, no balancing is done prior to assembly they don't even look at cell voltages and then they solder some random wire to the terminals and call it a day. Followed by 1200 comments saying "Genius boss you are great. I wish one day to build battery like you" Ehhh 20 seconds later the barley paper comes out! This is a quality build, just don't use the Smart Daly BMS's. The dumb ones are just fine though, good price and they work.
Hi, thanks for your comment :D This build was build 2 years ago, so today we use fishpaper for basic insulation between cells and balance wires. We learn from other and sure from our mistakes and aplicate it in next builds. Today we build our own busbars, our holders, 3D projects etc. but it was long way and i think that it will be much longer :)
@@Bharani_0601 these are compatible in 7s mode, the ups will charge these batteries up to 70%. It will reduce the maximum on time as battery not fully charged due to higher voltages but will least much longer and still a lot better compared to lead acid batteries. If you already have them in hand just use these. But I agree it will be better using 3.2 volt batteries in 8s mode, such as 32700 you can put 16 batteries inside UPS with 2 leadacid at 12, also more safe to use lifepo4 batteries as these not exploding.
@@mcells_batteries Alright, can I use the same port to charge and discharge? Would it cause any problem in the future? The BMS that I am going to use supports this feature.
Capacity of 24Ah? You’ll need a (insert number for voltage) S and 10P pack if using 2400mAh cells. (Insert)S5P if using 4800mAh 21700 cells. 3000mAh cells would be (insert)S8P. The first number I’m omitting is the cells in series. 7S for a high 24V. 6S for a very low 24V. 4S for a 12-16.8V and 3S for 9-12.6V. Thankfully 36V fits just about perfectly at 10S with 3.6 nominal and is close enough for 3.7 nominal cells.
Is possible 48v 10, 20,30,amp lithium ion battery a grade or 3c battery fastest charge in separate 24v/24/ total 48 amp 20 separate 10/10 is possible fastest charge 3500mah 6000mah in 10 min or 30 minutes 80% charge with separate charging also charger is decided total battery capacity for charge like 48v 24ah battery but why charge 3 or 6am charger because 48v 24 battery is there so charger is 15 am fast charging why not used is possible fast charging in separate we plz reply
Brother Nice demonstration and excellent clean work. I just have one doubt.. why did you use a black wire for battery and charge positive ? and why a blue wire for battery negative ?
![Felix "Unfair" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/Oswujxm2Ag0/mqdefault.jpg)
Your handiwork has made a very beautiful battery pack.
Excellent work and thank you for showing how to set up the BMS
Good job - looks factory made . Impressive. That spot welder works great. I want to do same to drive my 24V garage door opener motor.
He made a 240watt battery pack cool
That's not a battery. That's a work of art!
Thanks man 👉
Dear sir bms price 24v 10ah 21s thiree sirees
@@NASIRIDRISI69 What?
I liked your cable management 😉
This is just a seven cell, 24v battery, butt three wide, yeah?
Off of the same bms.
I was unaware you could do that.
Excellent.
I need some fat-assed batteries for the boy's electric scooter.
Thank you random stranger!
Could you put a component list what was used and where to get ???
What's was that you put middle of the batteries the black wire ?
Temp sensor
Brother you made a nice video. There is no background music so i clearly vision and understand what you have done..
Thanks 🙂
Pls make a video about diy spot welder
Next time :)
Where did you get the BMS
Amazing dexterity!
My only suggestion will be to add the gasket insulator same you use on the side of the battery on the top and bottom or fiber glass insulators. Other than that looks amazing.
Thanks for comment. Yep, today we use fishpaper for all sides, battery pack is wraped to shrinkable foil like in video but on sides we use insulator glue for waterproof efect.
I though you only needed 6S for 24v... I am confused, if these are 3.7v nominal voltage that would make it 25.9V and 29.4V fully charged. I am thinking of building the same for my scooter that uses two 12в lead acid batteries.
Hi, in battery world is 24V for 6S and 7S...like a 48V is for 12S and 13S. Same 60V for 16S and 17S. It's rounding.
For replacing 2 12V lead acid batteries is good choice 7S connection.
The slightly extra voltage dima in either 6s or 7s makes no real difference.
Also those 12v x2 lead acid battery type scooters do not charge or hold charge for very long due to the electric motors being
very power hungary.
Bsst to just buy li ion scooter with brushless wheel motor.
@@fraserm803 The scooter was free, I figured I could make use out of it if I build a Li-Ion battery for it. The sad part is when my son was 4 it was perfect for both of us to ride it. 3 years later he kind of outgrew it and I am sad I put this project for too far long on a backburner :(
Pls can you tell me the tools used to make the battery.
Thank you
Nice work👍👍👍🙂🤝🤝🤝
Excellent technique, very well done
Eres muy limpio trabajando, sí señor 👍
Will it matter if I get a 15amp bms for this battery pack?
Excellent job mate. Inspired
Holla budy can you please tell us what kind of Spot Welder you were using in this project please?
Great video, that very first weld on your first spot didnt look like that first weld took, i only see one dimple on your closeup, rest look fine.
Yes, sometimes is welding pressure little bit different and it make some changes but it has not effect for final work.
How do we know it worked? No testing done.
Our customer was satisfied :)
@@mcells_batteries Who is that authenticated customer?
10Ah 🤔 what type of 18650 did you used?
Hi, was used Sanyo GA.
@@mcells_batteries nice 3500 for 10 cd nice video hop you can make one about 21700 5000 with a holder 8 slots double sided 🤞
beautiful work dear
Hi, can anyone tell me what is the white striped wtape tht was used to hold down the BMS called? Thanks in advance! Appreciate it.
It’s a certain kind of packaging tape that has “strands” in it to give more rigidity. For the life of me I can’t remember the name.
Good job pero donde pudo conseguir todo lo que utilizó en este proyecto especial mente las baterías 🔋 y el bms
sorry but can't you explain what those black battery holders and the various stickers you stuck are? And then there would also be that circuit board you plugged in later. Can you put the links where you found the various materials and tools you used to assemble the battery pack? Thank you
Nice build, very clean, thumbs up!
But 2 comments from my side:
-At 5:10:
Too dangerous in my opinion: While welding on the second side of the battery, there should be some tape for isolation on every cell you are not working on at that specific moment. If you missplace your strips left or right or one strip falls down on the pack while handling it or something like that you´ll get a short. Also if there is a metal strip or anything else conductive left getting under the pack.
-Why are you using black for the positive discharge wire???
Hi, thanks 🙂
1. - Yes, I realize it but I know what I'm doing. Therefore, I often check the location of the connectors.
2. - I ran out of red wires 😁😁
Ran out red wire lol
Sir your all components name please mention in tutorials video & also battery soldering machine name mention many many thanks you.
Nice job!
Thank you for your video clip! :)
Nice neat work
24v 250w electric cycle range kya hogi battery se?
Hello, I assembled the same battery, tell me to charge it only at least 5A charging?
Hi, this battery is possible charge with 8A but it's on edge of BMS max current and cells too.
@@mcells_batteries my battery is charged to 29.4V. The BMS is like yours, but it turns off for some reason when the battery is discharged to 25V. can it be a faulty BMS?
What kind of Spot Welder did you used to do that battery?
Que BMS utilizas
Excellent art of batteries! I'm newbie on this, may I get your recommended tools name & brand? Thank you.
Where did you get the wire stripper?
Di solito nn vanno saldati prima i paralleli?
24v 250w e cycle kitne km chalega isse?
Very very nice pack and craftsmanship but the sound of your tools smashing the table was Killing me....
Get lower volume :D
Can we use the ebike ?
Nice build, very clean
can we use this li-ion battery to the inverter??
You gonna need a lot more battery power (higher voltage) and capacity to make use with the inverter... may be better to go DC to power your stuff.
@@rockefelleragent1357 I just wanted to know that is it suitable and safe to use with inverter because the discharge rate will go insanely high and 18650 can not be discharged more than 10 or 15amps cont.
@@GulftodayT Samsung 40T 21700 batteries might be better way to go... as they can handle very amp discharge (30+A continuous). Are you planning on powering large electrical appliances like a heater, AC, etc?
@@rockefelleragent1357 yes I build a 24v 100ah battery with 18650 cells for my home AC and water pump, but unfortunately the damaged from charging and discharging process because 18650cells don't have that ability to work with inverter. but I will try to make a new one with life-po4 like 21700
@@GulftodayT If you don't mind me asking are you using solar panels to charge your battery to power your home appliances like AC or heater? If so, can you tell me what size panels you are using and how they are connected (series or parallel)? What inverter are you using? What is the input voltage required for your AC air conditioner (or heater)?
As for the 18650 battery cells they will do fine powering your unit through inverter if they are quality name brand new conditioned cells and set up right. I don't recommend using LIFEPO4 batteries as they have lower limit of operating voltage range and cannot handle high amp charging and discharging. Samsung 40T 21700 may be the best battery to go with as they can handle high charging and discharging, and it doesn't lose charge in freezing/below-freezing temps, extremely efficient and reliable.
Why is it that after you finish assembling the battery there is no trial?
What is the diameter of the hot shrink pvc?
How many S has the battery
Battery is 7S3P
3kw ziewnic inverter?
That lap solder joint will reflow under high loads and let go, in my experience. I encourage you to consider a linesman splice or similar mechanical joint under solder.
Bataryanın eni boyu nedir boyle bir batarya 12 volt 9 amper aku kutusuna sıgdırmak istiyorum
Nicely done! I’ll follow this to make mine and thanks.
24 or 28 volts? 7SP3?
This build is 7S3P. In battery sociaty 6S and 7S are marked like 24V.
Quanto mi costa fare una batteria così da 24 v ma fatta da te io penso di non essere in grado di farla
What is the weight of the battery?
Hi, aprox. 1300g
@@matejsuchy4178 thank a lot.
You've got a new subscriber
@@matejsuchy4178 Hey I was wondering if you could help me with a problem that I have, I have tried searching for a solution on the Internet but to no avail
How do calculate the total capacity of a battery that is connected in series with a different battery with different capacity
Let's say I have 36v 10s 7365Ah + 25v 6s 10Ah = 60v total, how can I calculate the total capacity for this configuration?
charge it ,choose 29.4v or 24v charger?
Hi, for full charge i choose 29.4V charger. (7 series*4.2V)
Are those dark green insulating rings necessary?
Hi, yes. These insulating rings are used to strip the cell and the connecting pad.
I think the battery casing is metal.
No, even big company like bosch doesn't use it, because the cell already has one isolator ring. But extra is better.
How's the temp.cut off with the red cells?
Inside of pack is bimetal switch with cut off temp. 70°C. This protect pack from high temp.
We cannot get 24 volt using 3.7 volt cells.
Correct volts should have been shown with a multimeter at end.
Apart from that, the hand work is impressive, no doubt.
Nice work I appreciate you thank you.
I have created a 7s 15 p battery pack with bms, and tried to use it with apc ups.. It just trips when power goes.. When i use it with existing battery in parallel it works fine
Hi, voltage is same? 7S has 29.4Vmax, try discharge battery to 24V and try use it in ups.
Check bms limits
very nice videoplease,where i find the nickel stip
awsome work. what spot welder do you use to weld the battery strips together (5:33)?
Sounds like a Sunko
can you send me the schematic diagram of the connection of wire from the batteries to BMS and charger ? Im going to build a batter pack for my electric bike? please reply immediately thanks
Can i build the same configuration (3x7) but having only 20 cells ?
Hello,
May I ask which cable cross-section?
you used ?
Thanks in advance.
nice work
Great job. Worked systematically.
They say if you cut the balance leads unevenly short and long, there will be difference in resistance and the cells will be charged unevenly. Is it valid?
Its a small pack its ain't gonna get a potential difference between the balance leads
Bataryanın eni boyu nedir boyle bir batarya 12 volt 9 amper aku kutusuna sıgdırmak istiyorum
Hi! the video is superb. I would like to ask you why you use a 7s configuration instead of 6s? which do you recommend and why?
Hi, thanks :D 7s was better for customer device, has higher voltage, higher energy instead of 6s.
@@mcells_batteries thanks for the fast replay. If my device has a nominal voltage of 24V VDC, would a 7S configuration be suitable or 6S is more recommended?
@@m.barrios You need know maximum possible voltage, but if is 24VDC nominal voltage i think you can use 7s.
@@mcells_batteries thanks so much for you support! Continue the good work 😃
hi what bms was used for this having trouble finding one ?
A physical barrier more than kapton tape would be preferred for the BMS/balance cables. Something like barley paper but this is a really minor thing to point out. The fact that you're using kapton paper is enough honestly, RUclips is full of Indian kids using cells that look like they died 10 years ago and have been rusting away at the bottom of a river ever since, put together with zero capacity, IR testing, no balancing is done prior to assembly they don't even look at cell voltages and then they solder some random wire to the terminals and call it a day. Followed by 1200 comments saying "Genius boss you are great. I wish one day to build battery like you"
Ehhh 20 seconds later the barley paper comes out!
This is a quality build, just don't use the Smart Daly BMS's. The dumb ones are just fine though, good price and they work.
Hi, thanks for your comment :D
This build was build 2 years ago, so today we use fishpaper for basic insulation between cells and balance wires.
We learn from other and sure from our mistakes and aplicate it in next builds.
Today we build our own busbars, our holders, 3D projects etc. but it was long way and i think that it will be much longer :)
Next year we will start produce more videos and you can see our progress.
What is the capacity of each cell
Hi, It's Sanyo GA 3350mAh
I want to buy this for my apc ups 24v, can you provide me please.
Thanks
These are 18650 cells which is not compatible
for UPS, try with 26650/26700 cells for UPS. I'm already using 12V 6AH 26700 cells for my APC UPS.
@@Bharani_0601 these are compatible in 7s mode, the ups will charge these batteries up to 70%. It will reduce the maximum on time as battery not fully charged due to higher voltages but will least much longer and still a lot better compared to lead acid batteries. If you already have them in hand just use these. But I agree it will be better using 3.2 volt batteries in 8s mode, such as 32700 you can put 16 batteries inside UPS with 2 leadacid at 12, also more safe to use lifepo4 batteries as these not exploding.
Is this suitable for 24v 250w electric bicycle. Can I buy from you, Iam from Bangladesh.
Looks like a homemade GTA sticky bomb 💣
Hello..Is it possible to manufacture the value of the voltage 12 and the capacity of 200 amps
Yes but need a special bms
And 200 Amps is very dangeorus
how much do these batteries Mah
Per ricaricare la batteria che ci vuole
Very professional work
What is the total weight of the battery you made?
And can we use them for radio controlled vehicles?
Hi, weight of this pack was 1300g.
Probably yes, but it depends on many parameters.
What is the name of battery cover tap
How much does it cost for a setup like this?
Nice Sir
Pekna praca 👍
Vďaka :)
How much would a battery like this cost to buy
what model watch ?
Hi, Xiaomi Amazfit Pace
Hi where your location please?
Love your technic
Was kostet solch ein fertiger Akkupack?
can you make a battery for dell Inspiron 9300 with max watt hours
and 11.1v
He didn't put charge and check the voltage..
Ciao mi sono iscritto da poco lavori molto bene bravo! hai realizzato un pacco batteria per tassellatore Hilti 36v hai un video?
What would be a 7s to ?P for a 24v 22ah -/+ battery pack
Hi, maybe 6 or 7P. When use 3500mAh cells with 6P it will be 21Ah. When use 3200mAh and 7P it will be something about 22Ah.
Very nice video. The only thing that I can't figure these joints. And you can make mistake only once :)
Hey there! I just want to make sure, you designed the battery as it has different discharge and charge cables, right?
Hi, yes.
@@mcells_batteries Alright, can I use the same port to charge and discharge? Would it cause any problem in the future? The BMS that I am going to use supports this feature.
@@bars3402 there is common port, and different port.. 2 different bms
Mi puoi mandare il link del carica batterie grazie e anche bms
Good job..very beautiful..can you detail you materials use ang where you order..thank salute
Está bien la armada pero tiene que poner un diagrama de posición 😅
Hi Thanks for the video very helpful. My first attempt at making battery pack for EBike, only able to get 18650 2200MAH cells, will they be ok to use?
I think yes, but what about specs of cells?
@@mcells_batteries how to calculate 2200mah cell 10 Ah ?
This is awesome! Anyone else getting OCD about the label alignment?
Hallo 12v 18 21 ah ungefähr wie viel kostet?
How can I assemble batteries with a capacity of 24 and a current of 150
Capacity of 24Ah? You’ll need a (insert number for voltage) S and 10P pack if using 2400mAh cells. (Insert)S5P if using 4800mAh 21700 cells. 3000mAh cells would be (insert)S8P.
The first number I’m omitting is the cells in series. 7S for a high 24V. 6S for a very low 24V. 4S for a 12-16.8V and 3S for 9-12.6V. Thankfully 36V fits just about perfectly at 10S with 3.6 nominal and is close enough for 3.7 nominal cells.
Is possible 48v 10, 20,30,amp lithium ion battery a grade or 3c battery fastest charge in separate 24v/24/ total 48 amp 20 separate 10/10 is possible fastest charge 3500mah 6000mah in 10 min or 30 minutes 80% charge with separate charging also charger is decided total battery capacity for charge like 48v 24ah battery but why charge 3 or 6am charger because 48v 24 battery is there so charger is 15 am fast charging why not used is possible fast charging in separate we plz reply
Hi, i don't understand what you need, you want know if you can charge battery with high current or what?
Brother Nice demonstration and excellent clean work. I just have one doubt.. why did you use a black wire for battery and charge positive ? and why a blue wire for battery negative ?
That's when I ran out of wires :D