Originally Posted by
rekmeyata
Yeah, I carry a set of extra AAA bats for a Nebo Slim flashlight I use at the campsite because, like you said, carrying a charger weighs more and takes up more space, plus a charger uses 110 volt American plug, I can't plug that into my solar charger I take to charge my phone, my small bike lights, but when I'm bike camping I don't take my AA powered Philips Saferide, I don't need it since I don't travel in the dark when bike camping. Plus most campsite stores carry AAA bats, and if not I can always find a store that will, so the extra set gives me a huge cushion of time to buy another set after the first set dies.
My NiMH battery charger (the one in the photo that is no longer sold) draws USB power. And there have been other smart chargers that draw USB power. I charge up a powerbank with my dynohub, then later use that to charge up my AAA batteries, AA batteries, camera batteries, phone battery, etc.
I used to use a Sinewave Revolution to convert dynohub power to USB power, but a few months ago I bought a Version 3 Cycle2Charge that puts out roughly 50 percent more power than the Sinewave, that will be my new go-to dyno powered USB power source for touring.