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Solar Power Battery

Darren Said:

How much can one solar power battery hold?

We Answered:

I don't know of any battery technology that is able to trap sunlight. Maybe you would be better off converting the energy from the solar cell into a chemical energy battery.

Marlene Said:

How long will it take to charge a battery by solar power?

We Answered:

First you have to transform the panel energy to a higher voltage than the battery. Cars charge their 12 volt batteries at around 14 volts. You could do this by running several such panels in a series to make the voltage additive or you could use a transformer. Assuming 100% efficiency (not realistic) then stepping up the voltage to 4 would reduce the solar panel amperage to 25 giving you the same 100mA charging potential. Again assuming 100% efficiency in the charging process it would take 10 hours.

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