Solar Power 8: Let there be (cheap, sustainable, and portable) power!

After much revision, I present to you the "final" product.

I say "final" because there are still many changes and improvements I would make if I had more time/money. Some improvements would include general aesthetic changes, more features, and greater durability:

• Water-proof case
• Built in access to existing status LEDs
• Incorporation of existing power switch to control bright LED for use as an emergency flashlight
• Smaller overall dimensions
• More rugged solar panel (though the panels are designed to be expendable and upgradeable) 
• Cleaned-up design: fixing etching mistakes, increasing raster area visibility, tightening press fit parts

For now, the Universal Solar Battery works like a charm, charging my phone and tons of other USB devices without a hitch.