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Working Of Solar Cell

Deborah Said:

I'm working my cell phone and have come up against a problem dealing with the four contact on the battery?

We Answered:

This question could not possibly be answered, because it depends on the phone/battery. One of the leads is most likely a positive, the other a negative. And the remaining leads are probably for charging. Usually they will indicate the +, but that is it. You will have to do some reverse engineering with a meter and try to figure it out.

Katie Said:

How to make an object that can work on a solar cell?

We Answered:

i think when you head to hardware stores, you will see a small panel of solar cell with 2 leads, you can buy a mini propeller then attach the leads with soldering and make it into a fan...

just head to the hardware store, when you find them, you will think of more.

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