Originally Posted by
SecondChildhood
I have touring in mind, and thanks to yours and others' comments, I think the Luxos U is the way to go for a headlight and USB for the cellphone and anything else I can charge with USB. By "computer" I mean what you refer to as speedometer, a Planet Bike Protégé 9.0 Cyclocomputer (at least for now). Yes, it does take a battery that lasts for years, but the point is not to use any outside juice at all. I may have to compromise on that point.
Thanks, everybody, for your comments so far!
Hey, yeah, while I haven't really done the research on it (whereas I have done a ton of dynamo light research), I've never seen a bike speedometer that's rechargeable. They all take batteries, and they always seem to take those watch batteries which as far as I know have no rechargeable options. The best I know of for a separate speedometer is a wired version - wireless speedometers need a new battery every year or two, wired versions last for years.
My only other suggestion is that there are smart phones apps that will do the functions of a speedometer via it's gps, and since you could recharge it via the dynamo hub, that might technically meet your needs. :-)