An e-bike is a bicycle that has an electric motor that can be used to move the bike. The purpose of the motor is to enhance the power of the rider, not replace it. For a complete definition of an e-bike, please see the ECEB Program Participation Guide.
Electric bike batteries are rated in watt-hours, with each kilometre using 7.5 to 15 watt-hours of energy. The range of a battery depends on a lot of different factors, including terrain, speed at which you are travelling, wind conditions and temperature, among others. As an example, a 540 watt-hour battery powering a 500 watt motor has a range of 36 km to 72.5 km.