Most treadmills and stationary bikes use electricity, but what if you could produce electricity while exercising? With a pedal-power generator, you can! And you can use the electricity immediately to power a television, computer, stereo or other electronics — or store it in batteries to use it later.
Why not convert your workout into useful power by using a pedal-powered generator?
Photo by Stephen Hutchings
You can generate electricity using a hand-cranked or foot-operated device (left) or a modified bicycle. An inverter (right) changes the direct current into alternating current for use with many common household appliances.