With new battery technologies a new kind of "bicycle" has emerged - so-called e-bike.
It usually has an electric motor on one of its wheels. The motor is powered by a rather huge (size of a small bag) battery. Pedals, star wheels and the chain are still in place, so the user can
- use it as a normal bicycle or
- use pedals to assist the vehicle or
- just rely on the motor and use it as a scooter.
Speeds like 20 kmph witout using pedals are typically promised.
What I don't get is in which scenario and how I use such vehicle.
Do I use is as a scooter with ability to be driven by pedals once it runs out of the battery or do I use it as a bicycle with the motor assisting me and letting go faster without too much of activity?