Learn how to make your own battery with my book DIY Lithium Batteries: or check out my second book – The Ultimate DIY Ebike Guide:
Spot welder:
18650 cells (Sanyo GA 3500mah): https://goo.gl/J6ONJV
18650 cells (Samsung 26F 2600mah):
Nickel strip:
BMS: http://goo.gl/S6gSQx
Silicone wire:
Black 18650 cell spacers:
Large heat shrink tubing: http://goo.gl/6v1ow9
Foam sheet for protecting battery:

If you’d like a written step-by-step guide showing how to build an electric bicycle battery, see my article here: