Sixwheel' For mountain biking I just bring the pod too as I dont have a dynamo installed on that bike, too much up and down to take a good charge and the risk of snapping off the USB port.

King Ralph', an inverter? I figure the 11A/h is fine for me and delivered via USB powers most of my gadgets. I also have a lithium 18A/h battery that I use with a 25w solar panel and have a small inverter for camping.

aironeous, some of these converters will work with the 6 volt magneto takeoff on those bolt-on 49cc bicycle gas motors. I think most regenerative electricalbicycle motors use 12-48 volt systems but I am sure there is a smart way to tap these for phone charging. If there is a 6volt port though everything is easy, maybe this is for standard bicycle lighting options? I considered a wrist holder but in the end decided the phone was safer on the bike in a wreck.