How to build an 18650 Lithium Battery Pack with BMS.
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- เผยแพร่เมื่อ 17 พ.ย. 2018
- 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.
To visit our website click below:
SolarGeni.com
Charger for this battery can be found here:
solargeni.com/12.6v-3s-5a-lit...
/ westhattechguy
If you would like to view / purchase these and other batteries we have available click below:
solargeni.com/batteries
If you want to build your own generator, and need supplies you can check out our Amazon store by clicking below:
www.solargeni.com
BMS 25a in this video: amzn.to/2KMcKHK
This video shot and edited by Derek Smith
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THIS VIDEO CAN BE SEEN WITHOUT MUSIC HERE: th-cam.com/video/p_HTv6UdgAY/w-d-xo.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?
That music is abysmall, but thanks for the video.
I love Abysmal, they rock! 😎
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
Really neat and tidy job, those cell holders are great.
Thanks!
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.
an excellent straight to the point video with no distractions and presented by someone not trying to be a comedian, brilliant.
Thanks
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
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.
So Neat and Clean you have built the battery pack👍👍, it's looking good after you made it , I am impressed 😊😊
Where did you get the spot welder and other parts used in this video?
How would you charge this?
This was awesome! Thanks!
Thanks! YW.
very neat and clean battery pack.. keep it up dude..
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
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
detailed and informative ..... nice work i will make one soon thanx
Sweet video Wes, I enjoyed.
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 🙂🙂🙂
How do you wire BMS?Please explain it or give some link.
What do you mean?
Very helpful. Thank a lots
Very well done!!!
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.
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.
This is a great tutorial. I am looking to build a 5s 4P Battery Pack. Any links to some tutorials you might have ? Also can you recommend a BMS to handle the job ? Cheers ;)
great video! - thanks
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
Soldering looks a bit dodgy but still an awesome video.
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?
That spotwelder is neat
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
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
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.
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 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.
thanks for the great video!
You're welcome, thanks for watching!
Hi, Could you tell me if you charge the batteries via the BMS board or how do you charge and with what equipment.
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.
Great info.. music ruins it though
Best explanation Sir. Thanks
Thanks for the great video! Do you think this wud b good to start a motorcycle ? will i need a cap? Thanks
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
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 Wes, that was very helpful man!:)
I love that neat and wise Nobel teaching
Thanks
Nice video but no explanation of battery connection positive/ - the average could get hurt not knowing what his soldering
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.
Good video. Thank you.
thanks for watching
Great stuff
Intro for headphone users be like:
o____ o_____ ' _____o _____o
Only legends will understand
NICE VIDEO.ITS HELP ME A LOT,THANX
Have you ever built a battery for a car with a smart charge alternator? Trying to gain some information about what type of bms would be capable of doing this there are battery's out there already doing it but I'd like to understand it a little better thanks.
Love the music!😎✨👍
So what you have here is 12V 20A Lithium battery pack, that's awesome!
If I wanted to power 12V LED strips from a battery for 40 hours constant at 1A load, would I be better off using a car battery or building a pack like this? I'm not really sure of the pros and cons of each?
Great video content, thanks
Can you provide a link for those precut nickel strips?
great video, that looked so simple build. makes me feel wanna push on my plans on building one. btw, do you have any idea if i build like 6 of these to get 72v ; like 12v ea with the bms on is that something thats okay to put in series with the bms on and so as charging them as well. i know its 4 years late to ask the question , ill just ask anyway
thanks
this is awesome.. thank you
Thanks Mac
Wow very nice explain thanks bro
what welder, and setting works best? those portable hand spot welders don't work out so well
What spot welder are you using to build the pack?
Wes, i want to build a 3s 5p battery for running my vexilar ice fishing sonar and some led lites. With saftey as a primary concern i am wondering can i use only a 3s balance harness instead of the bms? I plan on charging the pack with a imax b6 lipro balance charger. Any advice would be appreciated. Thank you. Great video.
Yes no problem as long as you monitor it when it's charging and discharging etc. BMS is used for redundant safety. You're welcome and Thanks.
Great video. Where did you get the black battery holder and the nickel strip that fits perfectly over the battery holder? I don't see it at solargeni web site.
sir What is the highest voltage I can charge from ac adapter, can I use 16v 2A or I must have 12,6
Good job I want more videos how to integrate batteries to vehicles
first time ive seen such video, ive loads of tthem 18650 as well. Can you buy the whole kit? that board thingy mi bob or some lcd screen with some data ? is that possible?
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.
Thumbs up for the kick ass music!!!!!
Please help. Just completed my 14s4p battery pack my problem the BMS 14 lead wire harness is now too short to reach the cells monitoring voltage. Can you recommend the tools and parts purchase for building your own wire harness? Or better yet a 14 lead harness with leads at least 12 inches long.
Wow. Awesome
thanks
that is a nice set up you have! like the battery pack too.
Spot welders are cheap on *Bay-- or you can make your own. I would not solder to cells-- too easy to damage them (danger!). See: www.keenlab.de/index.php/product/kweld-complete-kit/
Ken Thank you for your input
Thanks Robert
Very nice , I like it, very neat and clean. Question, does fuse wire needed on each cell?
thanks. NO not with BMS. You could still do this but not needed at all. If you were using as a power wall and not going to be home to monitor than yes the fuses would help.
Hello, where did you buy the nickel strips to assemble the cells? Are they ready or did you prepare them? and the point welder, you could give me a reference Thank you
sweet thank you 😊
Very cool project! Like!
thanks
Looks simple enough. Thanks for sharing. Can this set up be used to replace motorcycle batteries? Would it be compatible with motorcycle charging system?
Yep pretty much.
Nice video 👍🏻, very simple and clean. One question, does the bms provide overcharge protection and low voltage protection? I want to replace the old fashion battery on my sons electric car
Thanks! Yes it does.
Another question. I like the 25 amp BMS circuit. I think I might need to buy a couple of those. However shouldn't each individual cell be monitored by a BMS or is dividing monitoring into 3 sections good enough??
the bms is connected to each set of cells in series for balance charging.
Great video! How would I test cells individually to make sure they are good?
with a volt meter
Awesome informative video. Thanks a lot. My question is can I wire let say 5 of these for total of 100 amp hours in parallel to use for my rv solar power bank...?
Thanks Nos! Yes you can or you could just make 1 100ah battery pack and then need only 1 BMS.
@@WesThatTechGuy what do you recommend for RV battery bank or 12 volt appliances in general 3 or 4s configuration
what spot welder are you using? i tried 2 different once and they both suck.
Thanks for the video. I want to to build a 12 volt 60 AH battery, how do I increase the watt hours?
Simple and straight forward , nice
Thanks
What do you do for cooling? Tesla has water cooled manifold between each row
thats a big question depending on the needs and usage of each battery. This is NOT a telsa car. Its a battery pack thats superior to the telsa battery cells by about 5+ times more amperage per cell. Tesla HEATS and COOLS the battery modules in the car with simple anti-freeze for specific reasons and safety. when its cold outside they heat them to keep them at the proper operating temp. when its hot outside and or they get hot they cool them for best operating temp and safety. Most people don't have to cool their battery packs unless they are running them to the max at all times. I build my packs to run my generators with more than 50% reserve of unused energy. So if you need 50a of energy the battery will easily handle 100+a.... Short answer when needed 1 or a few small fans.
It ok to make 3S11P in this bms since bms is 25A.
What is the rule of thumb about sizing the bms and the li-ion battery?
It all depends on how much current you want to draw from your battery pack. You might only have 11P for capacity instead of huge current output.
Hello, some says put fuses between batteries but how? or solder cables or fuses as cables?
nice one
can you wire two of those packs in parallel to get an even larger pack or would you need and additional BMS?
yes you can and you could use the same bms but this bms is only rated for like 25a if I remember correct.
Hello, I made the same, now I would like to know which charger to use, what voltage or if it can be charged with any 12v adapter since the bms will detect when the battery already has 12.6v of its maximum capacity and then it will cut the charge flow to protect Battery
12.6v li-ion battery charger
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
So IF you wanted to balance each cell individually you would have to make an intermediary circuit that could select each single cell during charging and then when done charging, recombine into the 3s 8p configuration for discharging? Curious as to why that might be overly cautious/unnecessary.
As far as I can tell the ONLY way to charge LiOn cells properly is to monitor EACH cell for temperature which will adnust the current (amps) to each cell. The voltage applied is also monitored. With simply a series/parallel conntection there is no way you can charge this pack correctly. If a cell goes bad it may explode, catch fire etc. Current draw from discharge should also be limited. Any over current draw can destroy a cell as well.
Smh
Awsome video, do you have one on charging this entire pack?
082020/1540pst. I’m watching this video for the second time. It’s quite inspiring. It’d have been nicer if the spot welding device could, also, be shown. Sunkko 708H/720?
Hi sir!
How did you choose a bms with 25amp? Do it have a formula?
Great Video, thanks for posting it
I would like to make a 12V 40 Amp battery, would you know if there is a BMS Built to handle that sort of capacity?
Where could you get one from?
Once again nice Vid
Thanks for watching. this BMS in the video is a 25a continuous and 100a peak. We sell the proper BMS at SolarGeni.com for the 40a you need.
I understand the whole process ,you did justice to it but how do I charge this ? And how do I connect it for use to charg phone?
you connect a battery charger to it 3s lithium and you can solder on a usb charge port to charger phone
I enjoyed that video, thanks. Now what charger would you use to charge that pack ? If using it in conjunction with solar panels would you just use you’re typical 12v solar controller and allow the BMS to manage the input from that ?
Cheers
Yes you could use a regular solar charger as long as its programmable and you can program to 12.6v charge output. There are many inexpensive programmable solar charge controllers on the market today.
I got a lithium maintainer but I'm worried that my BMS is not letting me charge back through the leads. is that common?
nice job done.. very informative video.. keep it up..
Nad, Thanks. Will do it. have you seen the video I posted yesterday about the 50ah build with BMS?
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.
Hi Wes, in a few weeks i will have finnished my 3 VAWT units, I would like to build my own powerwall. I am after suggestions, I currently have a 1.2kw Solar system, going to add the 3 turbines to that . Not sure if I want/need to go 12vdc 24vdc or 48vdc... I have access to approx 400 Lions possibly 600, wont know untill Feb on the qty.
Will the above make a decent PW unit? Any suggestions welcome. Thanks and happy new year.. Mike.
Nice congrats. I would always go to 48v for a permanent installation as for the efficiency. You will need a lot more batteries to go 48v. 24v would be cheaper and still somewhat efficient. 4-600 lions are a good start. I assume you mean 18650 battery cells. happy new year. sorry for late reply.