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Whenever we go somewhere by car or bicycle to carry electronic equipment that always when we need them remain without battery and do not always have way to load ... Have you found the solution with cigarette lighter, already found several solutions to take the hike to generate power and now found a solution to bike when we walk ... With the ancient principle to generate power for bicycle lamps now used the same energy generator called a dynamo to charge mobile phones while walking a bicycle. An excellent option for those who will listen to music and run out of battery ... A simple idea and useful for everyone ...
What do you think of this usb charger for bikes?
images not mine