It boggles my mind that all these bike lights use batteries and some are outrageously expensive too. Batteries are a terrible way to power lights. If I rode an hour every night, I would spend a small fortune in batteries. So it seems to me their has to be away around this battery dependance
I'm looking into bike lights as I'm car-free, and I'm looking to ride 3-4 nights a week 20 minutes a night; but I don't want to make duacell's stock jump a point from all the batteries I buy!
Why can't a bike light harness the energy of the bike? Like an alternator does for a car. Aren't there small generators out there that could convert the energy into the light? Obviously, the cyclist would have to carry a good pace to light the way, but only the better for their health!
Does anyone use a bike-powered light? Are they available on the market? Has anyone made their own? I'd like to hear your success stories on self-powered lights, battery lights and how you cope with the cost of the batteries