Going green with electronics

Solar-Powered USB Charger

A few months ago I built a solar powered iPhone charger for a friend’s birthday – it turned out great!

The solar panel is 110mm x 140mm. It outputs 6V at 330 mA and charges a lithium ion polymer battery with a capacity of 1200mAh (total of about 4.5 Wh) and a nominal output of 3.7V.

Solar-Powered USB Charger Solar-Powered USB Charger