This little guy has some pretty impressive specs! The Samsung 50S cell produces 25A Continuous and 45A peak, meaning that 2 in parallel gives 90A peak at 72V (90A x 72V = 6480W). Now you'd obviously drain it pretty fast at that rate, but still fun to know the power is there.

This video we show you how we built this battery using a custom 3D Printed cell holder pattern, Copper Plates that are economically available to purchase, and a Bluetooth ANT BMS to keep things in check and let us now what's going on over our Smartphone.

IMPORTANT TO NOTE : The Reention Downtube cases are pretty much all interchangeable! In this video we are using a DP7 (21700) Base, and a DP4C Lid, they butt right up! This can also be done with a DP5C Lid to get a 14S4P pack. Pretty cool! We found this out only by playing around with the cases, as the manufacturer does not list them this way.

We hope you enjoy this one! Let us know what you'd like to see!

Thanks for checking this out ! :)