What are the steps to make an electric bike out of items that are not 100$?

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teal289

How do I make a motor for a electric bike what pieces do I need ?

Answer
To make a high-quality one that can go fairly fast, you probably couldn't.

On the other hand, if you don't want to go above 15-20mph, you could probably make one for under $100. Buy a cheap broken electric scooter. Chances are the motor on it still works and you can use that. Those motors can get you going close to 20mph with the right gear ratios.

A motor controller could also be obtained from a scooter, or, if the motor you are using is not significantly powerful (<36v), you could probably buy a brand new controller for fairly cheap.

Batteries may cost a little more, but you could get sealed lead acid batteries for under $100 for sure.

Plus, their are the little things like the throttle, which is generally a potentiometer. These can be very cheap on Ebay.

Can I use many lithium Ion batteries and send them through a controller to an electric motor?

Johnny Fre

This is a complex question I know. I know little about electrical engineering but I want to build an electric bike. I could buy the same materials others have used but I'd like to use Lithium Ion Batteries. So can I connect wires from many bats to a standard controller and then to an electric motor? I assume I can, energy is energy, but what should I look out for. Has anyone tried this?

Answer
This is basically what they do for car batteries in hybrid motors, so yes, this is doable.

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