Picture this situation: You running out of battery on your mobile phone. So what do you do? Remove the battery from the back of the phone; give it a few good turns around your index finger and its gathered enough power to last you a conversation or a safe trip to your charger and electric point.
How to charge you phone, well, here is how:
I think a superb Idea, if implemented! would be very very helpful.
Designers: Song Teaho & Hyejin Lee