DIY 48V 20Ah lithium battery without a spot welder using Maker Batteries

[@EbikeSchool]

I hope you guys enjoyed this video. If you want to learn even more, I hope you'll consider checking out my Amazon #1 Bestselling book, DIY Lithium Batteries, available in paperback and ebook formats. a.co/iDtWdPX

[@candisbrendel7396]

EbikeSchool.com who showed you how to cross your 7's like that? my german teacher showed us in class, did you go there or see it somewhere else? I have one leg, I am in a wheel chair. did you do a wheelchair video? we mean, how to make a regular wheelchair electric? if not could you? that way we could copy it, I was a machinist until the leg came off. Col videos so far!!

[@airlmaz]

hi man! you have 6 pieces in a parallel.!! а это 17100 mah

[@EbikeSchool]

They are 3400 mAh each, so its 20,400 mAh total

[@KingCrabGaming1]

EbikeSchool.com hey, the motor I want to use pulls 20.83 amps, would this 20 amp be enough since the difference is so small?

[@EbikeSchool]

Amps and Amp hours (A vs Ah) are two different things. The first is more equivalent to power and the second is more equivalent to range. This battery can output 30A, so yes it would be enough.

[@Lordbaccus]

Dude you Glossed over so many IMPORTANT details!

[@gymkhanadog]

Clever way to respond to what is I'm sure a huge influx of people screaming at you "DON'T SOLDER ON 18650 TERMINALS!" Keeping the heat spread should help. I'll add my own 2 pence and say you should (probably) alternate soldering joints until you're done. Solder one end of the pack, and then the other end, then back. People who work on body panels for cars do this to avoid warpage of panels and to keep from blowing through the metal. Tack weld one area, move no less than 4 inches, tack, move, tack move. What you end up with is a panel that is warm, but not burning hot in any one area. I can see the same principal applied to these packs.

[@dirtydoge756]

This definitely puts in to context why already-made batteries are so damn expensive. Especially quality ones. I wish I had the patience or confidence to do something like this.

[@gyurterd8922]

for PEOPLE LIKE YOU, WE CAN EXPECT A BETTER WORLD. THANK YOU MICAH!!!

[@Redblower]

Thanks for convincing me to get a spot welder.....

[@anthonyfortier8765]

LOLOL best comment

[@1DumbSquirrel]

@@anthonyfortier8765 yeah this is all things you should not do lol

[@andrewzanas9387]

Nice job. Watched a few battery vids by others and cringed when giant threatening globs of solder were melted and slapped on top where they appeared they could easily short out individual cells, and wires were moved about before the solder had had a chance to set up. I like the nickel ribbon application using a spot welder to make small battery packs and use the ribbon to disburse heat and isolate the solder from the battery. Makes for an efficient assembly of larger configurations later. Also a big plus, a neat professional looking final package. We can live with soldering whole strips of pre-welded batteries. With solder alone I'm guessing there's an increased risk of creating cold solder joints. Cold solder joints mean a mechanical joint formed but electrically it could very well be anything from a high resistance connection to an open circuit or, as you pointed out, resultant heat damage.Was the finished product charged and tested for load balancing before you shrinkwrapped it? Do you not recommend shipping pre-charged batteries? What charger and display do you recommend using or including with a package sale? What brands and configurations in battery chemistry have you tried? Right now LG and Panasonic seem to be the top brand favorites for all standards of measurement. Sorry about all the questions. There's a lot to the learning curve and it's going to be big business down the road. Your video was extremely helpful. Thanks for this. I will def check out your other videos.

[@BrunoPOWEEER]

Hey Micah, really cool DIY battery kit... super easy and very quick to put together!!! Perfect for people who are just making one of few packs and don't want to spend all that money buying a spot welder!! AWESOME work... I just bought your book from Amazon as well. I got the printed version =] So much POWEEEEEEEEEEERRRR... haha

[@mikethomas6051]

Morrre power bruno!!

[@sr8shoota]

I'm sorry maybe I missed something. These packs look spot welded. Do you get the cell packs pre spot welded there for the title?

[@guytrimble8171]

He sells the rows of cells already spot welded.

[@TerpDaveW]

GREAT video. Excellent technique and final result. Thanks for providing a source of materials for avid DIY people like me!

[@saikrishna-mh9hi]

Thats a cool looking pack. I think you are very good at spot welding. Your videos are pretty informative

[@luisgamito8376]

you have video of a step by step construction of a 20s14p battery with bms assembly?

[@michaelkreitz]

What is wrong with all the people posting hateful comments? Micah is trying to help the DIY community and this is how you react? Shame on you...

[@gymkhanadog]

It's the internet. More specifically, it's the KZbin comment section. View it like a cesspool. It's mostly shit.

[@fidelvc]

Can you make a tutorial for 48v 20ah battery pack triangular shape?

[@samuelspacey710]

Shame? Shame is when your bike bursts into flames taking your house with it because of a short.... facts do not give a damn about feelings when it comes to house fires

[@cutty02]

yup unhappy losers like @Samuel Spacey are what make places like youtube a cesspool. Pessimistic losers

[@Freeknickers24]

fidelvc perhaps you should make a comment not a reply to a comment for you questions that are legitimate.js trying to help

[@royfitzsimmons6226]

Hi What BMS did you use for this 48 v 20 ah battery ?

[@CodySmiley]

Thanks again, I always back here to have sure im doing it right.

[@warlockboyburns]

Battery cells with high resistance like liitokala HG2s are acceptable for large capacity 20ah packs like this because larger capacity packs have less resistance than smaller ones. I have a 48v 10ah liitokala pack which doesn't perform great so I'm going to wire 2 of them together in parallel using a dual battery discharger converter adapter. I think if you buy large capacity cheap packs and only charge them to 80% it's better value and probably lasts as long as packs using pricier cells, the only down side is it will be 20% heavier.

[@facelessvaper]

Amazing - nice to see you up and selling your kit - I got really excited and headed straight over to the website, shame, I live in the UK, its a good job I don't need a battery just yet however I foresee the need in the future as I think my hub motor will out last my battery and at around 600 USD for a quality made one (or so they say) I am looking at other options! Keep up the good work

[@qusaytime]

I have an electric bicycle with a 250 watt 36 volt motor with a 36 volt and 10 amp battery. Can I switch the battery to 36 volts and 15 amps ..?

[@GoldenSim27]

got one and want to say a big Thanks! for making these kits available with great instructions . I am not afraid to try and build it my self, but since i am a complete newbie , this kit with pre-spotwelded good quality cells with everything included to make it ,including video instructions was Perfect! saved me a bunch of money, time and able me to make one in the shape i desired , keep it up man!

[@Thechist781]

I’m thinking about building one. My only concern is about how safe doing this would be. I don’t want the thing exploding between my legs or burning my house to the ground while in the power outlet recharging.

[@christopherbetty5017]

Mike, I have 3 52v battery pack that is assembled but not sealed. How can I make it into 2 72v battery without disassembling them?

[@Tony0THUNDERCAT0Reynolds]

Did the strips come ready welded, as the video says "without a spot welder"

[@EbikeSchool]

Yes

[@takismail]

this guy is a hack.

[@johnconrad5487]

so why lie in the title? also generally 18650 batteries are about 2.5 A-H and u have 6 in parallel so that makes it about 15 A-H and you called it 20 A-H.. for 20 A-H they all have to be 3.3 A-H. so now is that also a lie? you have 13 batteries in series so that makes it 48V which is what you called it. is the DIY your sales outlet?

[@EbikeSchool]

+John Conrad - Relax, they are Panasonic 18650B cells and so they are 3.4 AH each, meaning the total pack capacity is 20.4 AH. The title isn't a lie - you don't need a spot welder to build this battery pack.

[@romanf5666]

@conrad: I guess you have other problems, call a doctor

[@FREEHAND.WETGRINDER]

You are a big help I am struggling with an Alibaba.com battery. Ever thought about a q and a video? I was sold Sanyo batteries but now I’m told I have “generic famous cell”. I don’t know what they means but performance is incredibly low output. What to do???

[@alireza071]

I want to solder the 0.2mm copper strips on top of the nickel strip what soldering iron will be best to do the job pls

[@ПавелГрешных]

Great videos and impeccable quality result!

[@gideonlapidus8996]

Good one Micah, what about using copper strip pieces with the correct current rating?

[@guydrukman4344]

Can i make it the same way just with 5 batteries each cell instead 6?

[@dodits1665]

Can it be possible to parallel 2 pack with same voltage with different amp? Say for example 10 2.1 amp 18650 in series parallel with 10 2.5 amp 18650 in series? Thanks 🙏

[@JesusChrist-sx1lf]

13S6P battery? So these are 3.7V 3400mah per each cell. That sounds.. Expensive ^^

[@shavkat84]

Hey Mike i just received my batteries , I checked voltage all batteries from 3.45v to 3.50, my question is should I fully charge them or i can start putting it together?

[@deswr1]

Is it ok to Spot weld the BMS power cables to the batteries while their already connected to the BMS itself, would it damage the circuitry?

[@TheCrazyCartModChannel]

What a freaking fantastically fun idea🎉😂❤

[@speedysense3777]

You used 3400mah batteries, can u guide me how can i make it with 9800mah batteries? Same 48v and 20ah battery im intended to built

[@levelup90sapparelco.69]

Can i see your 9800mah battery?

[@jobmariano348]

Very helpful. But is there any budget friendly 18650 batteries. Please 🥺 help. I want to make my own battery too.

[@michaele1278]

I used to ebike to work, but that was with a sharkpack. I could just unlock it and take it with me. If I make a big pack of my own, or a triangle pack. Is there a way to quickly take it with me. I want to minimize opportunity for theft. Thanks.

[@Vmaxfodder]

I want to make a 28s 9p or 11p battery . any advice for this ? any problems you can think of? thanks

[@calyfornykid]

You need to explain what side is the positive and negative are going to be soldered.

[@bigcatsliontiger]

can someone who know about batteries tell me if its ok to build 13s 4p that normally needs 52 batteries with just 45 batteries . That mean the last set only will have 6 batteries connectes in series with each other and in parallel with other 3 sets of 13s ????

[@awengirr]

Thanks for the video. How can I charge it without a 48v charger?

[@georgegaw7809]

The 6 pack module looks like prewelded, positives welded together and negatives together. So each cell voltage must exactly or precisely the same, otherwise the cells with higher voltage will charge the lower ones. Please correct me if I'm wrong. Thank you.

[@mikakorhonen5715]

Does it matter if using only new high quality cells? I understand if using getting cells from random laptop batterys...

[@ScottL-w7g]

What would it cost in materials to build a 30a 48v battery for my scooter? Do you do custom builds? This for my scooter, they charge $400 for this battery which seems way too much.

[@blainec2414]

I can’t find where to buy the batteries on that site and for how many I need to get for 36 V 1000 W pocket bike

[@jeffjefry2873]

Hi...I have 48 volt 8.7 amp and got problem the bms not working ...I looking bms for that ..my ebike diamondback overdrive exo..I need you help...thanks

[@Mizziera992]

How to make 48v 30ah or 60v 33ah? How many LifePO4 32650 batteries will I use? And what BMS capacity for 48v 30ah and for 60v 33ah? Thank you for your support.

[@estevendejesus7400]

I was hoping you could help me out, I was trying to make a battery pack but I am having trouble finding a seller on ebay that wasn't trying to rip me off. can you post a link to where I can find these specific batteries in your video?

[@uptono8475]

Có tất cả 78 viên pin, loại 3,7 vôn. Ghép song song có 6 nhánh. Mỗi nhánh có 13 viên mắc nối tiếp (13×3,7v = 48,1v). Vì mắc song song nên số vôn của nguồn ra là 48,1 vôn. Thêm 2 Diod chống ngược cộc với một tụ bù, 1 Transitor ổn áp 48v và 1 ngỏ để sạt pin. Xin cản ơn Ad !

[@leecurtis6]

Hello do you have a website that You sell batteries that you’ve built? Or is it only DIY packs? Thanks Lee

[@darksenseful]

Sorry about my english but i dont understand well. I want to know if i want to do 48v 20 ah battery how much battery i must get? and how calculate is this.

[@urbanaudiophile482]

is it ok or safe to make 48v 60ah battery pack for my fiido m21?

[@kounaabdessadek1638]

How do I choose the right BMS? Thank you

[@ramihamouda6719]

I have a motor that is 48v 1000w and 65 battery avg is 2800 so how long would i expect on range can u please show the calculations

[@thehighriseconstructionob9679]

Those batteries are spot welded 6 or 8 in low to biggin wirh?

[@wisashelanobamoll8633]

Good evening, very nice and instructive video, thanks. , I have a question, can i use a 16s bms on a 15 row battery and just leave one connection blank, or is that not going to work out?

[@eddyboh2723]

I bought a 48V/99999mAh pack but it got wet and a few weeks after it dried off, it wouldn't charge any more. But it had 3.67 volts left after testing it with the multimeter. Can this battery pack be fixed?

[@davealvarez1780]

How to connect DMS can you make clear diagram pls

[@israw]

on another video you suggest NOT to solder a 18650 battery but you are soldering in the video ?

[@isipbata4007]

How did you know that is 2Oah? Not 12ah or 30ah or what else..

[@sultanmahmud6921]

What kind of charger is suitable for 48v 100ah battery pack?

[@Jcslim138]

Would two of these same packs in series make a 96v 40ah battery ? Also mind doing a video on two of these in series or two packs in series in general

[@jewitdawel1877]

I guess in serie it would make a 96v20ah battery but im not sure. Im new to this. I thought series is dubbling the volts and parralel is doublin the Ah

[@alidalkus3853]

@@jewitdawel1877 yeah you are right. You will need 4 times

[@txsraappraiser]

A power wall user was utilizing several 4.2 volt packs and combine those.

[@sbb526]

?? A spot welder was used on the initial nickle strips??

[@rlwings]

Great video, thanks! ... But I'm confused about something. Why so many strips? Wouldn't one strip connect 2 rows because everything is already touching each other?

[@Stiffler1109]

Disclaimer: I'm just guessing...know very little about the world of DIY battery making. That said, I wondered the same. My guess is that the thin strips of nickel might overheat if there were only a couple. Maybe dispersing the energy evenly and with greater surface area might just be better craftsmanship of that kooky DIY'd battery, dramatically reducing the risk of a strip overheating and melting. And I've only watched the vid once, but if there was only one or two connection points and one breaks, the remaining single connection might then have all the current running through it, causing it to melt in short order, resulting in catastrophic failure of the whole batt. I'm undecided as of the moment whether I'll DIY it or buy a premade. But one thing I'm not undecided on is my confidence that a battery failure as the result of going for a good *long* ride on my 48V 1,600W Uberscoot would likely produce a situation whereby there's precisely ZERO scootage yielded after the battery is toast, manifesting the consequence of walking the 80-lb Uberlug a considerable distance back home. I believe they weigh 117 lbs with the lead acid batteries. I'm guessing (again) that a lithium batt weighs 40-50% of the guesstimated OEM 50-lb battery bag. Conversely, I like the idea of a battery whose energy flow between cells is widely distributed, keeping cool and thus keeping its lifespan and health as a rechargeable battery nice and high and long.

[@stevenadams4429]

the Milwaukee M18v red 12.0ah used on Milwaukee power tools? As I’ve came across 5 of these bnib & im keen to know if there suitable for Ebike battery build. Being Milwaukee (a decent) brand name I’m assuming the cells should be decent cells? There 21700 cells high discharge, are these suitable for a decent battery build?

[@sekaf4125]

Very interested. I have 3000 miles on my Aventon Aventure. Do you have a kit for that?

[@sgsuper1150]

Size of finished battery? I have limited space.

[@DivineStatus]

I want to make battery pack for motor having 48 Rated voltage and 92 Amp continously current by using samung 18650 -30 Q cell ( 4.2 v max volt, 3.6 nominal voltage , 3000 mAh , 15 Amp continously discharge current ) 11S6P Or 12S6P Or 11S30P Or 12S30P . Which one is correct please let me know Thank you

[@ShimonKupferman]

אם אני מבין נכון, אז לפי מראה השקע ברקע, זה נראה שצולם בישראל, ומן הסתם על ידי ישראלי הקורא עברית, לכן ארשה לעצמי להגיב בעברית... עבודה יפה מאוד והסברים ברורים - כל הכבוד על המיזם הייחודי, ושתהיה לך הצלחה גם במיזמים העתידיים שלך!

[@drrelaxxx1666]

Fuck off

[@robertmotion]

Great video. Question, my battery is 48v 20ah. My controller is 48v 20ah. Manufacturer upgrade from 20ah b/c none in stock. Will this combo work? Heard it could damage battery. I use PAS too when riding. Hope you can help. /Bklyn👑

[@lingkarangcreative8397]

Hello bro... could i parallel built 18650 12v batter with 12v Accu?

[@zachdortch143]

is there somehwere i can buy just that black padding material you used?

[@ilangovanNTK]

How many kilometers running this method battery

[@prosptsfitness]

Such a great channel 👍

[@pepealonso7846]

How many batteriea do we need for a 48v 20amps?

[@aubinsutanto2154]

Hi Friends, I Just DIY 48V 20Ah , 2 pack , and I confuse about How I Can Paralel that Battery so I can get more Power to Be 40Ah , cause I BMS there are two port , One for Charging , and another is for Discharging. I do with Recondition Battery not a new one is need a special treatment ? Thank You

[@thediscoman2001]

have u a link to the shrink wrap

[@grumpy19631]

Ok that was very cool!!! Fine job. I have to get your books

[@michaelpaulino1881]

What BMS did u you use?can i have a link where i can buy it?

[@abramzacharias1]

What battery size? Lithium iron or Lithium ion? Not enough information in the video

[@WiljamiHei]

how much would it cost if i buy it ready made?? for my eletric scooter 48v 1600w??

[@samsungnote8913]

Hello. I did the same battery. Who can I exchange for a larger BMS? I need a 48V 60ah BMS. This will be good? Unfortunately, the risun engine consumes 2880 watts instead of 1500 watts. I think he needs a minimum of 50Ah all the time.

[@frankcrawford416]

Dude! I'LL just let you build the batteries. I am not tech savvy I guess. Great presentation. Thank you.

[@a.i.5673]

how did you get 20 ah out of 24 x 18650 cells ?

[@TheResoluteMind]

alex iva I think there were 78 cells right?

[@goldengear6125]

If I had a amp controller rated for max 84volts and 41 volt cut off would I be able to use 2 36volt battery packs together ?

[@TheBarrettrussell]

How come there is so little fusing with ebike batteries? Too much work?

[@bradley9856]

But this will not balance charge every cell. Is this not Nessisary?

[@mrkeopele]

really great demo., beautifully built battery! I'm wondering whats the cost diy vs retail pricing?

[@arjojotadape]

do you sell allso the 18650B cells 3.4 mAH?

[@anandsingh8987]

Please help to understand the comparision between Li-po and Li-ion for e-bikes and if we can use it for e-bikes.

[@otablott7779]

Lipo and lion are same battery but lion are also called 18650 calls which are much more stable and safer. Lipos are very volatile and are a serious fire/explosion hazard

[@LEARNER4LIFE1]

is there a way to build 48v battery under 10ah? i cant find any videos or tutorials

[@HowlingWolfLeather]

So how many of these would it take to power something like a super Soco?

[@scmacklin1]

I checked out the prices for battery kits at DIY. I can buy a complete battery for half the price of a kit?

[@brucesweatmaniii6030]

you guys welded the first strips? Why not weld these strips too? Save time and make sure you have a better connection.

[@jaylynabugan8756]

can I use Copper sheet rather than nickel sheet?

[@kernhamilton553]

This is one of the best videos I've seen good work bro

[@TeomanOzsen]

What is the size of heat shrink?

[@adrianbelo2365]

Master how to build higher voltage Ang higher Ampere. Like 72volts 60ah.

[@RyansMarket]

One question. How do you locate and replace a bad battery if it goes rogue or reverses polarity or something? I’m not sure the what the chances are of that occurring, but isn’t it beneficial to be able to service the batteries? That’s one major advantage I see in your modular cell building kits.

[@conradritchie2236]

Could you do a video on how to make bottle shaped battery packs.

[@mikakorhonen5715]

No no no, this is not about energy drink called Battery.

[@billybbob18]

I would use Kester rework flux on the solder points and use lead based solder for a faster melt at lower temps and a better joint. This is DIY so you're not selling lead free products to consumers. This is the same method used by the military and NASA which should speak to the quality results. After using Kester products for over 5 years, I can now understand why military engineers rave about it.

[@terrydubay9113]

Let start off saying I love your videos! Very informative, Clear and to the point, One of the best video editing and quality. Now you had mentioned you build battery packs for customers. What is your business web site?