As much as battery technology has improved, I just have never trusted any battery system more complex than a set of rechargeable AAs. Honestly, I think this goes back to my humiliation in university courses in circuits. All those diagrams just seemed like Sanskrit to me. Give me Physics 1 or Statics…stuff I can see. I intuitively feel better about relying on a small powerplant built into my hub than the alchemy of li-ion or metal-hydroxide battery packs.
Give me a power supply that is always ready when I ride. Something like the Shimano Alfine dyno-hub, or if you are flush with money you can get the Benz of generator hubs, the Schmidt. Planet Bike is adapting their excellent 1W Blaze LED headlight to the generator application, bringing the high performance and dead-on dependability of modern LED technology to a market that largely still relies on halogen-type systems.
It seems like the light itself is almost ready to go, but Downs’ group was mulling over mounting options. Visually, it’s a 1W Blaze with a wire exiting the rear, and so far the graphics on the casing are the same as the regular version. Look for the generator-powered Blaze next season.