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Wind up battery …

In theory, this might be a genius idea.  In reality, I think I’m probably just too lazy to spin my AA battery for 20 minutes to get a full charge.  If it were real, I suppose it could be a lifesaver … like, say, the next time you’re stranded in the middle of nowhere and your handheld GPS runs short of juice.

yanko_wind_up_battery_3

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Originally published on October 5, 2009 in Gadgets

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