I go very often to cycle in the nature where is no electricity, and during a long bike tour my phone usually discharges. These smartphones have a large capacity but its consumption is big too. I made a few weeks ago another bike turbine for the Bicycle Contest, but I think I can make a better one. So created an all in one wind turbine power bank.
I like to combine cycling with electronics (these are my favorite hobbies) so that's why I create so much bike gadgets now for the Bike Contest.
This project requires basic soldering experience and some patience.
The price of a device like this is very high on the eBay, 112 bucks!!! Click here if you want to see. OK, my one can't light and isn't so smart but this price on the eBay is ultrahigh.
The gadget was made from scrap parts and from very cheap circuit parts. Now go gather materials!