The e-bike market is booming. Thanks to electric support, cyclists can choose their routes more freely, elderly people can stay mobile, and commuters reach their workplace stress-free. This makes many people use bicycles instead of cars. Presently, charging of the battery takes about two to four hours. To shorten charging time of e-bikes in particular during daily use in the city, Karlsruhe Institute of Technology (KIT) and Coboc GmbH & Co. KG, a company specialized in electric mobility, plan to make the batteries of pedelecs capable of rapid charging.