In this video clip you can watch avery good video clip Charge Your Phone using COIN – Amazing Science Experiment. Three amazing coin battery experiment, Run emergency led ligtht, charge your phone using coin. If you use copper coin every cell will produce .7 to .8 volt 2 – 4 ma. for 5 volt we need at lest 8 cell.
So if you want to charge you mobile phone at 500 mp you need 500*8 = 4000 coin. We don’t have this much coin but if you make this much cell definitely it gonna charge you phone. Dekho kida charge hundi hai phone di Battery es 5rs de sikke nal, video dekho te share karo.
How to make a portable charger?
Home made portable power bank.