Following Becky Stern's Solar USB Charger Instructable, I just finished making my own portable solar charger! It hasn't been sunny enough to take the solar panel outside, but I've confirmed that the charger works!
Rather than using a cardboard box for the contents, I used Adobe Illustrator to make a revised version of this simple curved box with a living hinge. My revision adds holes for the components depicted below.
Completing this project has made me want to learn more about ways that I might apply solar power to future project.
