What does battery capacity mean?

The battery capacity refers to the stored amount of electricity of a battery and is give in the unit ‘Ah’ (ampere hour). It also determines how long the battery can be used: A battery with one ampere hour can transfer a charge of one ampere for an hour.

For the range of an e-bike or Speed Pedelec, however, it is not the battery capacity that is decisive but instead the energy in ‘Wh’ (Watt hours). The range depends greatly on a number of parameters such as weight, topography and altitude difference, road conditions and surface, temperature, weather, wind, tire pressure, assistance level, shifting system, cadence, riding style, condition of the wear parts, air resistance, riding position or the number of stops per ride.