These days most randonneurs use a navigation device (smartphone or GPS) which will be needed for much longer than their battery will last and a dyno-powered USB charger is a great solution.Here are some comments from the Randon list: Tim Feldman asked: How much power does the USB charger provide, and thus, how quickly will…
This link shows one way of using a dynohub to power lights and charge a phone for navigation, along with an illuminated cue sheet holder. Read all about it
Hear is a useful idea I found on the YACF forum Somnolent said: charging of Garmins from a dynamo while on the move is problematic even in the dry. Nothing that can’t be overcome mitigated with a little ingenuity. Been running my Etrex (HCx) from the Luxos USB offtake for a couple of years now. I’ve…
Sinewave Cycles Revolution The Sinewave Cycles Revolution is a bicycle dynamo powered USB charger. It converts electricity generated by hub and bottle dynamos to USB output. The Revolution allows users to charge USB-powered devices while riding. Features: Best in class efficiency High Speed Overload Protection Simple Installation Light weight Shock…