How to Build 12S2P DIY Electric Skateboard Battery Pack! - Part 1

In this tutorial, I am going to show you how to build a 12S2P electric skateboard battery pack. I am using 21700 Samsung 40T batteries(which I highly recommend for more power with compact size) but you can use any size battery, the only real difference is just size of the battery cells and the final batter pack.

In Part 1, I show you how to hot glue the batteries together and also spot weld it. In Part 2, I will show you how to solder BMS(Battery Management System) to the built battery pack so you can safely re-charge the battery pack.

See Part 2 here:
   • How to Build 12S2P DIY Electric Skateboard...  

WARNING, building battery packs are not laughing matter, make sure to wear rubber gloves at all times and also use kapton tape to temporarily tape any open terminals as you do NOT want to short any of the terminals which can easily cause fires or even KILL YOU. Make sure to tape off the first battery negative and last battery positive as they are the end terminal points of the battery pack and carry the full 50 volt load.

I recommend 12S2P if using VESC as you get a ton more power for less current, also much less voltage sag meaning you can go at full power much longer than 10S2P.

Join our Dr. E Skateboard Forum here for any questions:
https://ask.dreskateboard.com/c/ask-d...

This particular battery pack specs:

344wH capacity
70 amps continous discharge
90 amps continuous discharge under 80 degrees celcius
fully charged 50.4 volts
4000 watts of continous power

Parts List:
24 21700 Samsung 40T Batteries ($6.99 each) -
https://www.18650batterystore.com/217...

2S-12S Adjustable BMS($19.99) (BMS BYPASS ONLY, if you are going through BMS for discharge you will need much larger BMS w/ BMS output of 70 amps or higher!)
https://rover.ebay.com/rover/1/711-53...

Kapton Tape($10) -
https://amzn.to/2zJ84kg

Spot Welder($239) -
https://amzn.to/2LzqA11

Nickel Strips

Solder($26) Really love this brand solder -
https://amzn.to/3bHhZnR

Soldering Iron($27) -
https://amzn.to/2LDQLnA

XT90 Connectors($17.98) -
https://amzn.to/3cFAY3x

10 guage wire($27) -
https://amzn.to/3bJESXE

50.4 volt 12S charger($25):
https://amzn.to/3buxmSc

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Join our Dr. E Skateboard Telegram here for any questions:
https://t.me/joinchat/FxarBB25vjOqSGa...
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