These days there are more than 20 hub dynamo USB chargers available! I have listed the key specs from each of these chargers and have organised them according to type (headset, regular in-line and light chargers). Within these categories, you’ll also find them ranked in terms of available output power.
Hub dynamo USB chargers are really useful if you carry any battery-powered gadgets. I use my Cinq Plug5 Plus to top up my iPhone, eReader, head t