How do electric bikes work?

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Anyone who’s ever ridden a bicycle with a dynamo light should get an idea of how electric bikes work. With a dynamo light the kinetic energy of the spinning tyres turns the dynamo, transferring energy and ultimately powering the light. Electric bikes work oppositely. A ‘dynamo’ of sorts, in this case a battery, produces energy that transfers to kinetic energy in the tyres and moves them forwards.  More...