You seriously don't know how much this helped, finding any useful information online is surprisingly difficult. But man, not only did I learn a lot, but I also actually enjoyed learning it all as well. Props to you

Pavel I gotta tell ya... The shear amount of value (I'm talking about detailed tutorials) you put out there is on an other level. Everytime I search for a particular topic I end up on one of your videos. I finally built my 1st DIY (bought 3 boards before). Your video on bypassing BMS discharge was instrumental. You're just awesome. A big thank you !!!

"Always buy from a reliable source." That's great advice for buying anything on line, Pavel. Thank you for explaining what those cell numbers mean! That 12S 5p battery will be quite impressive, my friend. Great weather here in the N Central U.S. today. I rode 4 miles on the NLS PRO today, and I think I will take it out again this evening in just a few minutes.

Thanks big chap. Never too long. Appreciate the NHS shout, means a lot

thank you for this, i was completely overwhelmed with the thought of building a 12s3p battery for my diy build. I really appreciate some clear and concise direction regarding this Will keep watching.

Best explaination i've seen about cells to date. Thank you for breaking down all information about cells. Like the Brooklyn hat, i am from Brooklyn N.Y. living now in Florida.

Big fan of the NXJO 35A 18650.Very consistent capacitance and output, I know the best application for these is more low volt/resistance but I like the piece of mind it wont start spitting or damage other cells in the daisy chain/pack. I used the Samsung equivalent you talked about, I found they had a very good quality as well, figured I would leave a recommendation for you or anyone else looking for a reasonably priced 18650.

Just found this and the knowledge level is excellent. I'm intrigued to know now what in 3 years has changed - what improvements if any have come to us. Thank you.

One of the best understandable explanation of Batterien i have ever heard. Brillant.

Learned a lot and the length of the video was just right. Thanks. Now I know about 21700 batteries. Just got into building battery packs and welding. Thanks again.

Very instructive and easy to understand, looking to repair ebike barriers and this helps a lot, now I can just make my own batteries if I chosen, fantastic vid man, very descriptive and informative 👍

Thank you for the video. I have been debating on doing my own battery for my build. Most likely a box on top

Thanks man. This gave all the info I needed that all the other videos I watched did not supply. Making these can be very dangerous and I appreciate the in debt knowledge, plus the peace of mind in making a SAFE battery pack to meet my boards needs.

Thanks you did a great job of explaining things. Now I am 100% for understanding these type of battery packs!

Very well explained and easy for any beginner to follow. I think you for got to mention make sure the batteries are at the same voltage at 3.6 or 4.2 before they start making packs 😉

I've been just getting into fixing and building tool batteries and this has been very helpful that's for the time you spent explaining

You make me happy. Just what I need. Just got interested in this, so much to learn

Great video. Really helped me understand the details in a battery pack. Keep making videos like these!

Great video. Very well explained. I'm going to use this info to build my first pack to upgrade a Razor E200 scooter from old lead acid batteries, to lithium. Should be a fun project.

Thank you so much for taking the time to make this video! You are phenomenal and this helped answer so many questions I have.

Really really really good job on this video Pavel. Thorough. Wish this video would have been up when i was researching for my build. Knowledge is power! so are batteries! and the more the better :)))

Nice video Pavel. I think that those wanting to learn to build battery packs need to spend at least some months studying this online and figuring stuff out. Trying to understand it, watching many videos and going though the whole process and also realizing the dangers... I know pretty much all about it and have known for a year at least. I still don't feel it... My main battery guy sends me emails how he accidentally shorted something just for a moment, explosion, a hole in a battery cell. I managed to burn a third of my table, my whole hand black... I was just soldering XT60 to the battery and the two main wires just touched for a milisecond, never seen lightning in my apartment :D It's crazy what the cells can do. Eskate packs or any bigger packs are not for beginners and even real experts need to watch out and make mistakes sometimes. This shouldn't really be messed with. Badly soldered series, might tear off, then you plug in your charger, charging a torn off 6s battery with a 12s charger and your home burns down... :) You could show what it does when something that is not supposed to touch does... So that people see how real it gets.

Thanks for the upload, your explanations are very clear and well executed. I understand the fundamental complexities of battery bank construction a lot better than I did prior to watching tis video, again, thanks for the upload👍

I'm just starting to get into building My own battery packs though I don't have an electric skateboard. I appreciate the Tutorial information is extremely useful For my solar projects, though I just have to scale it up a bit. Thank you for taking the time and sharing your knowledge.

Great video, thinking about building drone batteries. Complete beginner, this has explained a lot of mysteries to me.

Such an awesome video . I am new to building battery packs and this explained a lot and broke it down very well. Thanks for this and I will be watching your other videos .

I absolutely love all your videos I actually build batteries as well I’ve learned so very much from you and I highly appreciate your content

Very nice, I was having a hard time explaining to my brother how this all worked and showed him this and he finally got it.

Excellent, the best explanation I've seen ever on you tube, bloody bell explained

Hi Pav I agree in order to cover the subject without skimming over important points and principles, you need to spend the required amount of time. So please stick with your chosen format. I enjoyed your approach to the subject of cells, and your structured and progressive description. I learned and understood a lot, from watching this video on cells. I've subscribed and look forward to exploring more topics in the future. Well done!

Hello Pavel I don't know if you go back and look at comments on your old videos but I have watched about three or four of your videos and you are a great teacher I've learned so much about battery packs and now I want to build a battery pack for my surron I was a little bit leery but now I'm very sure of myself when I go to build it thank you very much

Wow I thought I knew about batteries.....now I do after viewing your video. Your a great teacher. Thank you I will be watching all your videos.

Also i could never have done any of this without your help your content is absolutely amazing I’ve watched just about all of your videos this is where I e learned how to build packs thank you for such well explained and executed love your content

Thanks mate for truly explaining this in a way I can understand... awesome video.

THIS is what I was looking for. Thanks for the patient explanation.

I am a skateboarder/recent rc guy. Your channel is cool and unexpected. Thank you for your enthusiasm 😉

Thank you very much for all these informations ! Well explained, very comprehensive, I know much more now than before watching your video. I go for watching the others. Thanks again.

Pavel, thanks for all your help... You make things easy to understand. My dual ER (extended range) battery pack Meepo NLS Pro uses the (10s2p) 21700 cells and I too, will use them in a not too distant home built battery pack custom made deck. I hope to use many, if not all, of the components you're using. I'm looking forward to using a VESC in the build, opposed to the standard ESC's found in the lower cost boards from China. I love my very custom Meepo NLS Pro component based current deck as it was my first esk8... but long for the ability to really customize it to my needs. Thanks again.

New battery builder here, thanks. I needed that.

I definitely understand a lot more about cells now. Thank you very much

Thanks, was very much in need of this info. Great explanation!

Great stuff!!

Beautiful video and explanation thank you !!

Great video. Really helped me understand the details in a battery pack.

Really like the video. Iv been trying to learn all bout a skate batteries and that really really helped. I like the detail in explaining. 🤙🤙

Thank you so much. This video was so informative. I learned so much about series and parallel setups.

Część już wiedziałem ale film bardzo pomocny i szczegółowy,dzięki.😁

So glad I found your video. Thanks, MAN!!!!

Subbed. Good complete info here. When you are talking about parallel and series connections it would benefit people who don't know to explain the circuits briefly first . ( additive amperage vs additive voltage ) I explain is like flow of water vs pressure of it.. people can visualize it better then usually. Ive done electrical work my whole life but just starting into making batteries so glad to find your channel

You're awesome man! Thanks.👍🏾

Very educational and easy to understand. Helped me a lot with my project!

Big thanks. Your explanation is very clear. You really know how to teach.

Excellent Video !! Your a great teacher!

Stumbled across this video very thorough and well laid out content. I will be looking to watch more of your videos this week. Thanks and keep up the good work. Mr6ft2

Learned a lot from this. Thank you for explaining everything.

Super nice video buddy! I learned stuff 😊👌 Thanks!

thank you for your explanation and yes…. the video is goooood

Excellent!!

Great vid, makes it easy for those that do not know. Only thing I would have added for those that do not know, is that when dealing with electric motors Voltage is directly related to rpm of the motor. Its not complicated, it just shows how we as battery builders balance motor power by rpm and voltage with longevity of amp hrs and the capacity of the battery to deliver current drain relative to motor rpm which also affects how long our battery will last overall. Some people do not quite understand, if you are a heavy person, the motor needs more current to push the same setup as relative to a lighter weight person. So they wonder why their bike or board does not last as long in run time compared to their friends which is identical. And then there is gearing, don't get me started lmfao so that highschool physics lesson is now relevant lol. Awesome vid mate

HI Pavel, so much info, it's so great that you share this with the community. It's a lot to absorb. I have a couple issues i hoped you could help me. I can't seem to find what i need. I'm not sure if i found it and missed it because I'm not experienced enough. I would like to know how to test a load, on a lithium pack for my skateboard. it's a 10s4p, I'd like to know, what is the rating of its max discharge. I have no idea how to do that or what is it I need. Iknow that at least you'll have an answer. The other thing is that i would like to buy a small smart bms for it. I'd love to know what you recommend please.

Already had most knowledge but this was a great video easily explained well done peace and love to all out there 🙏😎

Excellent video! thank you so much for such good information for beginners

Excellent no problem for andesten al this explcation very good Information

Great video

Well I'm about half way thru were you ask to let u know And we'll I mean I kinda knew the just of everything you've already said so far but most deffently you helped simplify things and gave me some memory tricks and well most deffently thank you for taking you time In explanation and putting your heart into it really appreciat it

Your videos are great very in depth which is in my opinion a definite rating of 10 of 10, most you tubers do not do very in depth videos like you do and that sets you apart from the others you’re doing a phenomenal job bro

great video i got waaaay more understanding now thanks to you!

Thanks again and do what you do its all good info and like you said cant please everyone or somtimes anyone.

Excellent vid. 👍🏽

Very well done, thanks.

Hi Pavel, nice education video! You probably already know this, the current used by the motors is not the same as what it is drawn from the battery. I know it's weird, but if your motors require 2x 60A, you will need less than 120A on the battery side, I would say around 100A. One can experience this looking at the VESC tool for example. You probably didn't want to over complicate an already complex topic I know :)

Thank you so much for this video. So informative

one of the best videos i have seen. keep up the great work

Perfectly explained and understood Pav. Thanks :-)

U r very helpful!!! Thank You Bro. Explained what I need ❤❤❤❤❤

❤ Thanks for the info. I learned so much.

Very very helpful video thanks for taking the time to do this

Yes I liked ur vid the way it is u did a great job

Suup bro!!!😁

Excellent video! I'm also very impressed with your command of the english language. I'll be looking forward to future videos. And no, it was not too long.

Great job man

Thanks!!!!! man this is very well explained!

Great video👍

You are explaning really good and clear. There is not a single word that we should not hear. Some video makers use a lot of unnecessary descriptions , boring to listen . Even thou your video is long it is not really boring. Like to listen what you say next. Good, Good. Thank you .

Pavel.......you are a genuis🧑‍🎓and a fantastic teacher👏👏👏. Just wish you would make a 24v 6ah battery so I could follow it🤞🙏😁

Great video! Thx!

Great video. I was thinking the thicker DeWalt battery packs had twice the amp discharge capability because the thick battery packs run my circular saw fine but the thin packs don't run the saw very well under load. DeWalt batteries are 5s2p, so it's the 2p part of it that doubles the amps the battery is capable of putting out continuously. I'm wanting to rebuild DeWalt battery packs and also to make some long range battery packs for my FPV drones.

Hi Pavel..Hats off for this informative video....what ever we learn will be left with us....Thanks agaian...

Yes pav the vid is very informative

Great video thanks, just needed to get my head around “p” and “ s” , now I feel I can pull apart a 48v scooter battery to make a 12 v one. I hope!

Heyy, I just want to thank you for making this video. I reaalllly learn a lot thabks to this ❤❤

Very good video!

Очень полезное видео, продолжайте. Мне кажется самые лучшие аккумуляторы - это аккумуляторы 18650, у них большая энергоемкость и токоотдача, например vtc6 - среди них нет конкурентов(токоотдача до 40 ампер и емкость 3000mAh при таких размерах)

Bob Ross of battery building, thank you for your guidance. 😊

Great Job

Geeking out on the box 😊

Thanks for your shared info

Your video was perfect brother must tell you keep up the good work don’t change just because some asshole wants your video to be different make your videos the way you want to

Great video , very informative,thank you.

Good video thank you I learned a lot from this