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Solar Power Cell Phone

Scott Said:

How much cell-phone-like radiation is emitted by the sun?

We Answered:

There is a chart in the source that shows it to be very low.

Donna Said:

Will a Solar Power Panel that produces (4.5V 30~50mA) be able to charge a cell phone of 3.7V and 900mAh?

We Answered:

It should work, but will take quite a while (18 times longer than normal.... 900/50) The 4.5 voltage v.s. the 3.7 should not be a problem. If you put two panels in a parallel circuit it would make it 4.5v 100mA, , only 9 times longer, , , etc...

Look for Parallel electrical circuit (Parallel Batteries), and connect the solar panels in place of the batteries in the diagram, and replace the light bulb in the diagram with your cellphone.

Be caseful NOT to connect them solar cells in series!
It would double your voltage to 9 volts, too much for your cellphone!

Discuss It!