A pedal generator for a chainless bike or human power – electric serial hybrid. Easy to build DIY project presented by Thomas Senkel. Free Plans for aluminum parts included.
A Keyde front hub motor is used as a generator. It is nominal rated with 160 rpm @ 36 V and 250 W. You dont need any electronics, just a 3 phase bridge rectifier. The lithium ion battery is 12s (44 V) and 2x 25 Ah. The motor power is up to 5 kW.

Free Music Archive: Graphiqs Groove – Deep Sky Blue

source