“Hand-powered technology, or how I stopped using batteries and learned to get a little exercise in the process.”
Yep, although things like flashlights and other handy items have been available with a hand-crank power thingy since like WWII, they’re getting new life through a few companies that have come up with innovative designs. Sounds like there are some new uses for this simple, renewable technology, including hand-cranked cell phone battery chargers.
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