How to Build a DIY 10s4p 21700 Electric Skateboard Battery (Tutorial)

if somebody is from 2025 can you help me. I have an evolve gt bamboo and Im trying to upgrade the battery pack and build it myself cause I can't find no builder right now. Anyways I want to build it myself but I need the measurements of everything. I don't know where to find the precut nickel strips or what heat shrink to buy etc. I you guys have build something similar can you give me a hand? Im trying a 10S4P 18650 samsung 30Q because most people trusts them but if there's one cheaper and same quality I would like help on that also. I have electrical engineers friends that handle the soldering on the uni but Im from Puerto Rico so I can't find no where here for materials.

Great tutorial! If I may, one advise, try to keep any metals away from the pack. I've noticed you were a bit close with the tin wire to the pack positive soldering the negative.

You made a mistake. As I see the battery pack. You did 5 red wires on the top ones but missed the far left one bottom parallel set. Then doubled up on the far right bottom.

I noticed that you’re using 10g wire to bridge the P group, is it bad to spot weld a nickel strip instead? Looking to make a 12s1p pack… do they sell U-shape nickel strip that runs to the top and down to the cell?

Nice build

why is lead 11 and 12 on the same pack? Will it read same voltage?

Nice vid! This is super helpfull! Thank you ❤

Hey video was awesome :) just curious about how you were able to recharge the battery when it dies. Is there are specific port on the BMS that allows for charging? Or did you charge it an alternate way?

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Thank you for your help🎉 i like and i suscribe.great

Hi, nice video and its execution! Please, answer the questions. Have you used that battery and how did the soldering behave? Doesn't the vibration destroy it?

Great Video - Whats the clear tape with lines in called that you've wrapped around the fish paper on each series group ?

Nice video! is there a reason why one of the P groups at the end did not have a balance wire on it?

Would this set up work in an evolve GT, if I reuse the BMS from the original battery pack?

how can you solder a red wire and black wire to the same piece of nickle i am sorry i am a 60 year old rookie

Can someone give me a detailed battery build of a 10s5p flat or 10s6p I have 90 Samsung 32e

Nice build but I kept waiting for the main leads to touch when you were applying the heatshrink!😂

Great tutorial! I'm working on a 12s4p 40t pack right now. Will be first time spot welding, though I've built 5 or 6 packs using outdated cell-level fusing with printed holders. Only question is why didn't you solder the charge leads onto pack before shrink wrap?

Great video ! Also wanted to ask if you would recommend using 21700 batteries to make a pack over 18650? What benefits or drawbacks there are one over the other?

Whats a good place to buy 21700 li-ion battery cells from? I've been looking at the 18650 battery store.

proper battery pack build
well done

Looks like my mboards battery

Great video. How much did the build cost ?

Clear wrap is both nice looking & I think it helps with maintenance. My friend has a board that is down because of a battery failure but it’s under warranty so there’s no cutting the pack open. He tested it & there are cells down but we figure it’s most likely a broken link. It would be nice to see all the way through & have a better idea. I think more companies should be transparent(pun intended)! Har har

Hey Dude, nice tutorial :)) but I have one question...
What is the total capacity of the battery?

top my friend.

you could have just spotwelded the series together ... no wire was needed.... why not like that ?

What did you use to separate the nickel tabs abd keep them from touching? Also how big is this width wise?

thank you for this, I am going to have to repair two groups on my 18s 5p battery soon. I know how to solder from fpv drones but any advice for something 18s ?

That is a beautiful looking battery 👍

Awesome tutorial with everything very neat and tidy! For the tabs in Series, could they have been overlapped and spot-welded together instead?

what enclosure did you use for it

Where can I find the clear heat shrink you used? I would love to be able to see the inside of my pack

Is it cheaper to make your own battery pack or at least significantly cheaper to make the work worth it?

For a 14s8p pack of the same cells, would 12 gauge wire still be sufficient to connect the p-packs? Or would 8 gauge wire be better?

Just a bit confused why you used a red and black wire both going to the same joints. What is the thinking behind that? Could not a single neutral colour wire be a better choice?

Can this pack flex?

Very nice tutorial. Thanks for sharing.

Really nice video. Confused why the use of red and black wiring between the packs on the same terminals. Logically that would mean a short, but I'm guessing they are just jumper wires with the same potential... They could be any color of the same right?

Great video, where do you get your spot welder. Look like a heavy duty welder tips

Loved the video! And quite cool the clear wrap, good work mate!

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