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A small solar panel I made that charges my cell phone. Please excuse my ghettoness of cardboard being my base for the cells. It's what I had quickly on hand, and I don't really care that much right now. This is mostly experimental.
The specs are for both panels separately:
Both panels are wired in series, so the total voltage is around 8.
The panels together charge a battery bank of 4 1.2 volt rechargable batteries, which then charge my cell phone.
I have not tested how long it takes to charge all 4 batteries from completely dead to fully charged, but I would say that it would take roughly around 1-2 hours.
I would also like to thank those who post useful videos on how to do build your own solar panels. They are very inspiring and very helpful. One in particular, RobertSmith3 is building a ~63 watt solar panel, in which I have found his videos to be quite informative and useful. Check his out: