The rechargeable batteries used in the project have a capacity of 10 Ah and are boosted by so-called recuperation mechanisms (power recovery) in order to increase their range. On the drive system prototype, the fitted controller circuit boards became damaged by the flow of energy produced at excessive speed. The circuit boards were adapted to the loads and the drive housing optimised to take the spokes better. Manufacture of the motors was also moved from China to Europe.

As a result, two types of charging post were developed: the solar charging post is independent of the electricity supply grid. It can therefore be set up, for example, in tourist areas away from any development. The charging process is performed on the pedelec itself via direct current. The grid-connected charging locker, on the other hand, facilitates safe charging via an earthed socket. In both cases the charging points are enabled using RFID chips.

The accompanying socio-scientific research showed that the batteries’ range is adequate for the current user group. Greatest demand came from the »50 plus« clientele. The major criterion in deciding to use a pedelec is actually trying one out, as it is the positive experience from doing so that first conveys the bike’s benefits. The price, by contrast, seems to play a subordinate role. Widening the use of pedelecs in the business environment as a substitute for commuter car journeys requires an extensive promotional campaign and is achieved less well by targeting car drivers in their private environment.

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