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

7 жыл бұрын

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

6 жыл бұрын

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

@EbikeSchool

6 жыл бұрын

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

@KingCrabGaming1

6 жыл бұрын

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

6 жыл бұрын

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.

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

Dude you Glossed over so many IMPORTANT details!

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

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

Great videos and impeccable quality result!

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

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

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

@anthonyfortier8765

11 ай бұрын

LOLOL best comment

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!

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

5 жыл бұрын

Morrre power bruno!!

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.

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

Micah, this is great! Thank you!!

Hi bro.. thank you so much for uploading this video... I will be building my 18650 battery pack soon... god bless!

Great video. Very informative.

keep it up bros and thx you for your channel and videos

Hi Micah, what kind of tin do you use to weld the nickel tape? 60Sn/40Pb? What combo is the best for this job? Good and clean work you made! Congrats and greetings from Spain.

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?

Just great video tutorial..and good alternative if you don t own a spot welder..anyway this says it all about the whole process wether you start from scratch or the pre soldered battery packs...why not ending the video with the charging process ?just to make it complete for noobs..thanks a lot guys ,this helped!

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.

Great video, thanks!!

You're a master!

Hey, a question... these kits (and others) don’t accommodate any fuses between cells. Other videos on here have quite complex bus bar / fuse configurations (often soldered directly to the cell cap). Are such inter-cell fuses important / advisable / unnecessary / definitely overkill..?

Many thanks for your videos and websites. Amazing resources that I'm still running through since I discovered them a few days ago. As for this particular video and the soldering process in general, I understand that preventing the cells from heating up is the key factor of the success in the entire process. I was wondering if it would help to cool down the soldering right after it's done, by applying a frozen or cold non-conducting object on it, so that the cold kind of balance the higher temperature brought by the soldering. Maybe not for this particular case, but more generally speaking when it comes to apply soldering that does not come from a spot welder on battery cells. Any thoughts? Salut et merci from France!

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

Жыл бұрын

He sells the rows of cells already spot welded.

Easy to see why readymades are expensive, wish I had the enthusiasm to do this.

Great instructional. Thanks

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

Great video, thanks. Do you know if they can make them in a 1s4p configuration. I am trying to make a flat pack that is a 10s4p pack.

very good idea Sr

Great video thanks for sharing your information,

Such a great channel 👍

Nice job

what voltage rating on bms you use for this? and can you used it into 1000w motor?

Dood your awesome! Just subbed to your Chan! I want to make my own custom made battery 💯

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?

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

Nice instructions and your channel has good content. Sub'd

Micah, is it safe to hot glue cells together like that? Should I get cell holders instead if I'm concerned about safety?

Another great video Micah..what BMS did you use in this project?

Do you have instructions/video for making a 36V 20Ah battery? What would be different in the configuration?

Great video tutorial! Have you built one using LiFePo4/32650 batteries for 48v/20Ah?

Nice job.

Would you recommend using the vruzend battery kit to make a 48v 20ah battery for an ebike? I don't have the equipment to do the soldering and stuff.

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

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

What are the assembled dimensions of your 36v kit?

Great presentation ..............................

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.

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

7 жыл бұрын

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

@fidelvc

7 жыл бұрын

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

@samuelspacey710

6 жыл бұрын

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

6 жыл бұрын

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

@Freekniggers

6 жыл бұрын

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

Love it... okay how many miles it can provide.

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

both your 36v and 48v kits are out of stock..will you be geting more ? when?...i liked the video very informational...

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?

please make the link in the description blue text. Great video.

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?

Hi, where did you bought a Uxcell PVC Heat Shrink Wrap for 18650 Battery Blue and what sizes did you used for battery pack 48v 25 AH ???

This is what I'm using on my 3-wheeler. 🙂

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

Really useful video

Hi, nice video, I would like to make a similar battery for a 1500w hub motor but with 52v voltage (14s). Which battery configuration do you recommend for this motor and above all if I use these cells of the Panasonic NCR18650B how many cells do you advise me to insert in parallel to have good performance and reduced stress per single cell?

Nice kit, but any chance you could sell a kit that includes all BUT the batteries?

When this kit will be available again today is 9/26/2019

Hi ebikeSchool where can i find a smart charger for high voltage li-ion batterys for example 72 volts thanks in advance

Excellent video bro may even check out your website . How do you calculate how many feels per pack like how many series and how many parrelle

excelente videos man¡¡¡¡¡

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

Can we connect bms to adrino board to monitor battery charging, discharging and battery capacity

Hey Mikah. This might be a dumb question but what happens if one cell is bad or has less voltage? How does this affect the total pack?

Do you sell the battery pack already assemble, or just the kit? I don’t have the tools to put it together, and even if i buy them it would be for a one time use.

what about charging? do all the batteries charge the same amount? I thought you had to have some kind of electronic board so they all get charged the same? thanks

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

Sorry if my question seems very stupid but I dont really know much about batteries. So how would you charge this pack? Most packs come in cases and have a plug in charging port.

@sreekumarUSA

7 жыл бұрын

Lithium Chemical batteries are a complex cell structure that needs to be charged in a controlled manner. Lithium (Li) is very unstable chemical and therefore, needs to be charged through a charging device is called BMS ( Battery Management System) Please get further advanced info online. YOU MUST NOT CHAREGE THESE BATTERIES BY THE NORMAL METHOD. Please note that if mishandled, the Li-Ion battery can EXPLODE and cause extensive damage to property and personal around it.

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 ?

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

3 жыл бұрын

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.

You are a genius!!!

Nice i'm thinking of building a new battery for my bike .

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

hii Micah can you make a video on various cells(PF, GA, 25R and other cells) and talk about C ratings and their applications in high and low power builds and also about life cycles.

@EbikeSchool

7 жыл бұрын

I actually just filmed one similar to this. I just need to edit it when I have a few spare hours and then I will upload it!

@willybee3056

7 жыл бұрын

EbikeSchool.com please show what to do, and how to fix , if one cell goes bad in the middle of the pack... This is not to jinks anyone, but all I see is an extreme head ache. And that would be my luck... tanx and keep up the good work. ..

very informative u need a good soldering​ iron tho mine was crap lol so I made one with transformer ayit

How do you measure (check) a single cell in a parallel conection of 6 cells ?

Hi friend, I liked the set up you made. I have an electric bike and I would like to set up one as I can buy these batteries and the charged circuit.

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

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.

hello sir, if I'm going to make an external battery that will be installed parallel to the internal battery, should I equate the internal battery MaH with my external battery MaH.

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

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?

I'd love to buy one of your DIY kits but I can buy the same battery, 48v 20Ah, ready made for less. Good video though and I'm subscribed! Oh, and I'm in the UK so there would be shipping on top.

So on your website two batteries cost $10 how many do you need for this project? It looks like you need 12 or more batteries 12*6 72 *10 =700$ ??????

If I wanted to build this as a 72v do you have those kits available?

Great presentation I have an e- bicycle 48 Volts, 750 W, 15 Amp I would like to get an additional battery 48 V, 20 Amp Question If I follow your instructions and build it, How can I attach it to my e- Bicycle?

Hi,you have tutorial book? I will buy it,send me information,thank you

how can i upgrade this to a 60v 20ah battery can u explain please? :)

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

How do I connect a 1 KW BMS? Please so a good way to build a 1 KWH battery with 1 amp current drawn from each cell

How do you legally ship your batteries you build.... I still cant figure it out lol. a 20AH kit would be 1KW and way over all the shippers maximums :/

Is bms required to be part of the circuit sir or its optional?

hello you could make a video of how to create a 72V 20 AH battery thanks

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???