YoGen Makes a Splash in Pull-String Charging

A 5 Watt charge can be generated with a very easy pull of the string. It doesn’t matter how fast or slow you pull, the same charge is generated.

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I also got a demonstration of their prototype pedal-powered charger for laptops, which is reportedly capable of a 50 Watt charge, with just an easy push of a pedal.

The problem, of course, is that Watts is a unit of power, not energy, which is what they mean by “charge.”