Hi, I am an engineering student, and I have an idea for a project, but I am not sure if it is viable. I want to make an article of clothing such as a jacket with several mini faraday flashlight-esque devices inside. They would be connected, and would charge a cell phone or other electronic device. My question is, can sporadic electrical charge be be accumulated so as to effectively charge a 3.7 volt battery? Also, how many induction devices would it take to make this device feasible? Any additional thought, comments and criticisms are very welcome and appreciated. Thanks.