Solar Phone Charger 3
A refinement of my earlier solar usb power supply. This supply is capable of 3 amps at 5 volts, has 2 outlets, and incorporates a water-proof host. Works with a input voltage range of 5-30 volts.
The benefit to this design is the ability to handle different sources for the input, as opposed to being tied to a single source. This allows the user, in times of desperation to use any source available within the 30 volt parameter, for example a 12 volt car battery.
