Solar Cell and Photovoltaic Circuits

  
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This almost trivial circuit may be used to charge a pair of AA or AAA sized cells in the sun. I have used it to keep my Palm Pilot and walkman radio running perpetually. This is an unregulated charger, proper charging is achieved by placing the unit in the sun for a known amount of Time, this Time varies according to the
Solar Cell and Photovoltaic Circuits - schematic

battery type.



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