While riding home the other night it dawned on me that one aspect of using bike lights that can be annoying is having to remove or change batteries for recharging.
I know about some of the nicer generator setups that use capacitors as a power source for short run times.
What I would like to know is if anyone has either rigged their own self-controlled generator system that could be set to only run when a brake is applied or manually switched to "on all the time." The idea being to run off battery power most of the time but run the generator and charge batteries during breaking or downhill/downwind cycling.
Does anyone know if this is on any manufacturers radar? It ought to be feasible and attractive for anyone but all out racing cyclists.