Join Date: Sep 2005
Bikes: Windsor Fens, Giant Seek 0 (2014, Alfine 8 + discs)
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Seems pretty useless to me. Even if it's very well built, I'd imagine you'd have to crank for a long time to charge a battery. Cell phone batteries plugged into power take a few hours to charge - that's not because they can't draw a lot of current from the wall, they can. It's because the batteries are not designed to take charge very fast. So if you have a dead phone, you'd better be willing to crank quite hard for 30 minutes to even get much of a usable charge into the phone, and several hours to fully charge it.
Honestly, I'd put more faith in solar panels. I don't know why touring folks don't have a panel on top of their panniers, they don't weigh much and they'll charge your stuff all day long. You could even work out a system for repositioning the panel every few hours to make it face more into the sun.
Work: the 8 hours that separates bike rides.