How to build an 18650 Lithium Battery Pack with BMS.
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- Опубліковано 26 сер 2024
- THIS VIDEO CAN BE SEEN WITHOUT MUSIC HERE: • How to Build a 3s 1865...
This video is about how to Build an 12.6v 18650 lithium Battery pack for an electric bike or solar generator or a small Tesla Power Wall. In this video I will be using authentic Samsung 25r 18650 lithium batteries. I am building a 3s 8p 20ah 12.6v battery pack.
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Charger for this battery can be found here:
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/ westhattechguy
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BMS 25a in this video: amzn.to/2KMcKHK
This video shot and edited by Derek Smith
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Music
Hitting the Streets - JR Tundra
Half Pipe - Huma Huma
Free Dog - Silent Partner
THIS VIDEO CAN BE SEEN WITHOUT MUSIC HERE: ua-cam.com/video/p_HTv6UdgAY/v-deo.html
Still has music😂
8p? Isnt amp is 20 for each sell and its 20×8? 160amp? So the bms take the 160 and convert to 20/25? I dont get it...
hey can i do this with a 4s if so can i contact you?
Interesting. I want to make one myself..But I wish there was a video showing you how to actually make a battery pack. I have searched 100s of videos and they are all the same. Add the batteries, add the BMS board and it's done!!! Which wire goes where? On the BMS what is P+ P- Exactly where and why? What is the tape you use? If this video was an hour long and it took you step by step for dummies. I would watch the whole thing.! 🙂
Same 😂
That music is abysmall, but thanks for the video.
I love Abysmal, they rock! 😎
Awesome video, thanks for taking the time to share. A little constructive criticism. I would recommend a soldering iron with a little heavier tip. I also like to hit those larger joints with a flux pen to get a better solder flow. Your + and - connections looked maybe a little cold to me.
Thanks for the insight!
I completely agree. I was suffering when I see the welding. Looks cold welded. I will not trust that weld.
Great info.. music ruins it though
Love your videos...You should also consider making a 12 Volt 18650 battery pack for cars/boats and motorcycle with best available bms and some bms with remote Bluetooth monitoring! ( Weather proof) Iam sure there are so many cars and motorcycle restoration guys would love to see. Just saying. 👍
These can be found on our website.
Voltages are a little off with Lipo/Li-ion.
LiFepo4 works out better for car,boat, moto
How would you charge this?
Thank you for this video. I made 3 of these packs to run my fish finder fir my kayak off of . Why are you not making any more videos? Hope you're ok. I liked learning from you.
Nice Video, just the music in the background is very distracting- other than that good tutorial Video. Thanks
Ok thanks!
Awesome video, getting on with the job, just plain simple to understand.
Thanks for sharing
You're welcome!
Can you guide me
Should i use 1.2v batteries of 4300mah for battery pack
I would use 3.7v 18650 or 3.2v lifepo4 myself. 1.2v cells are generally not for any type of high power usage they are used mostly for small solar lights etc. 1.2v is a usually a AA battery cell if memory serves.
And it's, upsidedown-- are you, blind-- deaf?
@naly Hwang right
Where did you get the spot welder and other parts used in this video?
One question, if you were to build two battery packs with BMS, each one is 12V, can it be charged in series (24V)? since I have a 24V charger or do I have to get a 12V charger to charge them.
The simple answer is no. Bms is usually will work in parallel but not always and series. You can connect them and series and try your charger worst-case it just won’t charge the bms Will stop the charger from turning on
@@WesThatTechGuy Ok thanks you :D
Hi, Could you tell me if you charge the batteries via the BMS board or how do you charge and with what equipment.
cool video!, what about balancing each cell?
Mark Cooper Agree, there could be tons of improvements, but i think its a good start. That particular BMS has a high current shut off i believe, and short circuit protection built in, but always wouldn’t hurt to be 100% safe and add some fuses to protect each cell from blowing up.
Well... that BMS is designed for 3S and he does actually connect it the way it's intended, for the most part, with 4 nickel strips connecting to each end set of parallels. You can't really balance each cell per parallel because... they're parallel, they're connected to each other. The length of each strip may impact how balanced it is over time but those nickel strips should be pretty good while I reckon. I'm not a fan of this particular video but I dunno if I can fault him that much. I would've done a better job attaching the BMS and output cables though. I would've gotten a less cheap BMS perhaps with the wires already attached.
@@Nitrxgen you can't ballance each cell but you can ballance each cell row. The 3 cell rows should be ballanced separately.
Looks super clean but, as others note, mostly due to lacking charge balancing.
an excellent straight to the point video with no distractions and presented by someone not trying to be a comedian, brilliant.
Thanks
Everyone is asking how to charge but I cant for the life of me find the correct charger. Can you please send a link of a charger I could attach directly. Thanks
12.6v li-ion battery charger. Go to the link and choose one of the 3s lithium battery chargers
solargeni.com/index.php?route=product/category&path=61_72_74
NICE VIDEO.ITS HELP ME A LOT,THANX
I'd like to learn more about your spot welder. Is it a DIY welder or a shop bought one? Many thanks
It should be a purchased item. Looks similar to a sunkko 737g+ . You can find it on Amazon
A few questions. What's the over and under voltage levels on this BMS? Does it actually do any balancing? Can you charge while a load is connected?
It got balancing resistor, it will take many cycles to balance
HELLO IT CAN NOT BALANCE AT ALL !!!!!!!!!!!!!!!!!!!!!@@divikumar5475
So what you have here is 12V 20A Lithium battery pack, that's awesome!
Good job.. To make this job a GREAT ONE, can you please give a proper explanation of how to connect the terminals on BMS on to the battery terminals. We have some terminals on the bms that illustrates 4.2v, 8.4V and also OV. Please show us the wires to be connected to these terminals on the BMS
Soldering looks a bit dodgy but still an awesome video.
How do you wire BMS?Please explain it or give some link.
What do you mean?
Good job I want more videos how to integrate batteries to vehicles
thanks for the no music version, and no soldier or lead here. Ni and spot welds. trying the other version to see if, well it is more sober.
Thank you once again for the video. Some time back I requested a few info from you. Perhaps amidst the busy schedule you’d have overlooked, which is understandable. Here are the requests once again, kindly respond.
1) Do you sell PURE (99.6%) Nickel strips for 2P design through your AMAZON store? If so, please point to that link. If not please recommend a HONEST Vender who sells the same.
2) The Spot welding on those batteries look so perfect. I’m sure that welding machine must be a SUNKKO. What model is that and do you sell the same model, through your AMAZON store?
FYI I use SUNKKO 788H that is so useless, that the welded Ni strip can be peeled off very easily.
Any help from your side will be highly appreciated. Thanks and regards.
Sree...
sorry for the lost reply.heres a link for the 2p nickel strip: amzn.to/2GxxLXc
Yes its a Sunkko 709A. Heres a link: amzn.to/2IjHBhf
I have on SolarGeni.com Amazon store too.
Hello Wes That Tech Guy, I made my first 3s batterypack few days ago. Using 3 x 4 = 12 cells. I did not solder or weld them. I used the spring loaded 3 cell plastic containers, and glued them back to back opposite directions. No cell touches eachother. But from the top and bottom I attached lot of wires, positives, negatives, and balance wires that goes together to the BMS at one end. Then I ducktaped the whole thing.
I am using it to run powerful 100watt LEDs on my bike.
Is it safe so far?
For your configuration you must check the maximum discharge current of your cells, in your case it must be at least 10A. Hoping the connectors won't melt obliviously
@@oli236 , Hello. It worked and I used it for few months. Then I dismantled it and spot welded it with proper method. Thank you for the reply 🙂🙂🙂
I love that neat and wise Nobel teaching
Thanks
sweet thank you 😊
I just started watching vids like this. I have no idea what the next step is though. I would really like to see what you do with it
I built mine from this video and I use it for my Kayak fish finder. It last a lot longer than lead acid + it's easy to carry around (doesn't weight much)
Jake Shepard I am on the same page as you, i can’t find a full video to see if they add a USB port on it or a AC port or something so it can be used as a big power bank. I’m confused too
The music sometimes makes it hard to hear and understand you!
sorry for this! It won't happen again!
I have uploaded a new version of the video with the music turned way down. Just launched it yesterday.
Autistic?
Thanks for the great video! Do you think this wud b good to start a motorcycle ? will i need a cap? Thanks
I have only 1 minor thing I'd add. If it was me, I'd carefully scratch off some solder mask around the power input pads on the BMS board. That way you could add more solder, get a better solder joint, and maybe even use a heavier gauge wire.
Where do you get your parts?
the batteries from Samsung and we have the bms' made for us. you can get them on our website. solargeni.com
I made 3S 8P with BMS like that. How many volts is the maximum input of a good charger. Thnks
12.6V 100% full so charger must be 12.6V
So I just built a 3S pack (only 3 cells). The cells each measure 3.5 V (new, but not fully charged). When I measure the cells in series, I get 10.5V (not fully charged). When I measure off the power leads, I get 7.8 V. Do I have a bad board, or do I just need to charge it? Kinda afraid to apply power to it .....
are you using a balance BMS? is so you most likely connected the balance leads wrong.
very nice and simple video. I would like to do a 12volt 14ah pack how many cells do i need
Thanks! 6p3s would be 15ah. 18 cells
Where did you get spot welder? Or did you make your own? Great video
Got it on Amazon. Thanks
What do you use this for, and, the soldering was less than desirable.!!
everything I can. Mostly energy storage. This was a fast solder and iron wasn't as Hot as I'd of liked. It is much better now post video. Can't me a master of all trades you know.
Thumbs up for the kick ass music!!!!!
Love the music!😎✨👍
Nice video but no explanation of battery connection positive/ - the average could get hurt not knowing what his soldering
Whats the maximum number of batteries i can use for 1 BMS?
that depends on how many cells you going use i would say i would only use as many cells that bms is use for like 6s bms i would only use 6 18650s
Hi can i make one for change the battery a motorcycle and in 12v 7amp
Néstor Manuel Mases yes
This is really concise and clear. Have you got a video showing how you charge this puppy? Your choice of power supply and connectors that turned out to be quick enough but safe?
Thanks! I haven't done a video on the charging but you can get them at solargeni.com. We sell most li-ion and lifepo4 chargers.
The way you attached the power out wires was really disturbing for me!
Any advice would be appreciated! Can you give me some pointers maybe?
@@WesThatTechGuy It is just me! I am taking soldering wires as a bit of an art! But i would twist the wires before hand fill them up with good fresh solder then fill up the pads too and then just touch them on the pads and get them stuck round and nicelly on the bms!
@@WesThatTechGuy basically fill up the wires with a good amount of solder and then put them on the bms! That would make a better placement and more secure too!
Ya I filled them prior and soldered the board but they are pretty thick so they were a bit of a pain.
@@WesThatTechGuy Working with such thick wires though requires a bit of a powerfull soldering iron since that thick wire dissipates the heat really fast. Dont know if that is the case with you.
You forgot the short circuit preventer rings to all of the batteries's positive side.
This is not done on all battery builds. We now have them available and use them but in the past they were never used by any manufacturers that's what the BMS is for to help with issues.
Ok dumb question: how do you figure 12.6 volts using a 3s configuration @3.7 volts each? I want to build a small 12v 18650 battery for my teardrop trailer with a solar panel on the roof; wouldn't 4s be better? Thanks!
Nominal voltage is 11.1 V charge voltage is 12.6 V.
Nominal voltage is 11.1 V charge voltage is 12.6 V.
Nominal voltage is 11.1 V charge voltage is 12.6 V.
Wow very nice explain thanks bro
Intro for headphone users be like:
o____ o_____ ' _____o _____o
Only legends will understand
Good video, a little fast for a beginner, maybe explain the reason behind each move, while creating the series parallel circuit
Love your video man trying to build a 36 volt 12 amp battery do you have any idea how to start do u have any diagram how to complete it and doing it for my scooter look a lot of video but could not figure it out half of this are cut out the main part of it the video Spell greatly appreciate your help thanks
Thanks! I don't have one now per say but if you follow this build video and just do 10s its exactly the same. Just keep adding groups of cells so you have a 10s4-5p depending on the mah of the cells you use.
Great video content, thanks
Lovely video, can you make a video using 30 sells 3.7 voltage, for 12 voltage using BMS
Sir i love this video.. I made also 3s battery.. But the input power is my problem.. Can i use input only 5v from the cellphone charger only..
Thanks. No you must use a charger that is 12v li-ion. Max charger input 12.6v
@@WesThatTechGuy thank u sir.. For answer my question.. Im pilipino.. But here in philipines.. But i love electronics... Because i want to put on the bluetooth speaker 12v amplifier..
@WesThatTechGuy whats the name of the bms you used in this video and do they have for higher volts i see so no smaller wires and want a simple bms same less wires is a good thng for me with high current out put any were from 250-350 help me if you can please reply thnkxs
Best explanation Sir. Thanks
nice one
Thanks for video 3.7v 10ah lithium polymer battery what BMS use 3s please tell me sir 12v 10ah
You're welcome. Thanks for watching! You would make it half the size. 12 cells... 4p3s
I wouldn't advise spot welding to PCB pads. They are thin and could easily delaminate from the board. I'd solder instead. Also nowhere near enough power for an e-bike or "power wall", unless you make a bunch of these, and there's better form factors for bikes. Would also be nice to know how you're using your spot welder (120V or 230V, settings, etc.) - I've seen mixed reviews on those. Nonetheless, thanks for the video.
Thanks for watching. I appreciate your input. My spot welder is 120 V.
This is by far, the easiest to understand video that builds a very neat pack, and I've watched plenty. I'll make these and just use them in multiples for ebike batteries, or wire them as 12 volts for other applications. Thank You!
Kenny thanks for watching! You’re welcome!
@@WesThatTechGuy how much amps it produced????
@@techtricks5553 it can do 200a
How to make 100a?
The Headbanger Klangers did the soundtrack.
You never said what size wire you used to attack to the bms board? I would hate to use wire to small and cause a fire :(
I used 10g for this build as its a small pack with only an assumed 20a continuous discharge.
Are you gonna pump 25A on that thin bare copper trace on the PCB? Won't it track? Aren't those solder joint gonna melt?
Yes with no problems. I’ve been using this battery for a year or two now with no problems.
Very well done!!!
I need to make a 48 volt battery pack I have a 108 18 650 cells
I’m just learning. Does BMS stand for “battery management system?”
So how would you charge that pack?
with this: solargeni.com/battery-chargers/12.6v-3s-5a-lithium-battery-charger-tesla-power-wall-s120
So Neat and Clean you have built the battery pack👍👍, it's looking good after you made it , I am impressed 😊😊
Simple and straight forward , nice
Thanks
Do you use the same wires to charge the batteries and to power a device? Could we have two plugs? One to charge and one to power the device?
Yes it does. This is a common port BMS, You could add another positive wire to have 1 for load and 1 for charge so you don't have to unplug to charge. Or you can get a dual port BMS. 1 for charge and 1 for load.
Very nice
thnx
Would be nice if you can put the total costings of the DIY vs. the one sold on the market.
So did I get it right that I can also use this BMS but with 3S2P?
Yes you can. Any 3s config up to limitless Parallel
Can you provide a link for those precut nickel strips?
Please what bms board can u recommend for 50amp battery pack and can also supports fast charging.. max of an hour
Check out our website solargeni.com
Can a connect two battery packs one chinese syncpower the other an lg battery pack together they are both 52volts the syncpower is 18ah while the lg is 23ah. I need more mileage so i need to connect an external battery pack to my scooter's internal battery
As long as they are the same voltage you will be fine. Be sure to connect them to parallel.
Is there such thing as a 8s bms? 8s4p??
jared jones yes we have them at SolarGeni
very neat and clean battery pack.. keep it up dude..
Does it change anything if I solder instead of spot welding?
Nope not at all as long as you do it right.
Really neat and tidy job, those cell holders are great.
Thanks!
What is the recomended battery charger voltage for this type of power wall ? 12/24 v ?
12v
Thank you
solargeni.com/battery-chargers/12.6v-3s-5a-lithium-battery-charger-tesla-power-wall-s120
detailed and informative ..... nice work i will make one soon thanx
What spot welder are you using to build the pack?
Thanks Wes, that was very helpful man!:)
Hello, some says put fuses between batteries but how? or solder cables or fuses as cables?
Could do with some description as to what a BMS is.. charger circuit thing? Input voltage?
battery management system. 3s 12.6v charged. Used to protect the battery pack.
That spotwelder is neat
Hi i have question about my BMS 10S
-Whent I measure the voltage between S1 and S10 .I find 37 V but the output the BMS to motor I find average 24 V
Please where is the problem?
too many variables to answer here. Check your balance leads. also some BMS will show incorrect voltage if the balance leads are not correctly wired in series.
Very helpful. Thank a lots
great video! - thanks
Can two 12V battery packs in series become 24V and can batteries in series be charged with a voltage of 24V.
Thanks.
Yes They can.
Your video on making the battery pack is very informative. However, the background music is to loud and obnoxious as this really took away from an otherwise great video.
Yeah yes that loud music got to go
I like the music
Nice bro good tuturial.new frnd her
Where to use this power bank......?
What is the right BMS for 4s 10p battery pack ......cells are 18650 3200mah .....what is the current rating of bms ??
We have several current ratings to choose from. 25a, 45a, 60a, 100a all the way to 300a, you can find all of my BMS's here: solargeni.com/balance-bms. Not sure if your 4s is Lifepo4 or Lithium-ion but we have both.
Oh meh gersh thank you so much! You practically did what Great Scott did but your intent was to teach not to entertain!
Your Welcome.
Hi Wes,
I just found your channel and this video. I love the battery you built in this video and am wondering if you can help me?
I live in Toronto, Canada. Finding LiOn battery building equipment and supplies here is proving to be very difficult.
I have an electric Chopper motorbike that I bought. It's made in China, like everything! The batteries that came with the bike are lead acid, had great power, they are a combined 72Volts. I need to replace the batteries completely. Ive had the bike for 4 years, this year I wasn't able to drive it because of trying to get batteries because of covid was incredibly difficult, and when they were available the cost was stupid.
Since I bought the bike I have thought that LiOn would be a much better power source and have wanted to switch over, but the cost to buy the batteries needed is incredible if I buy them already built, which is posing to be one of the biggest problems yet. Noone seems to manufacture 72V batteries, so, I'm thinking to build it myself. However I have no experience in building batteries, and don't want to screw my bike up.
I also want to install a regenerating system so that as I drive the motion of driving could generate electricity that could simultaneously charge while driving. Again, having no experience in this I need help.
The help I'm needing is:
1. Where can I get the supplies to build the battery for the bike?
2. Where can I get the info on building the battery?
3. Will I need to build a charger or is there something on the market I can buy for charging the battery?
4. And finally, how would I go about building a motion operated regenerating system that can be easily attached to the bike?
Any help you can give would be greatly appreciated!
Thank You!
-Matt
Matt thanks for watching. l can help with everything you need. I have all the necessary components to do the job. Check me out at SolarGeni.com
La mía es igual en todo trate de cargarla con un panel solar y un controlador de carga mppt y solo cargo unos minutos luego desconecta la carga que podrá ser
cárguelo a 12.6v y use un BMS.