An Apple patent (number 8,217,619) for portable devices having multiple power interfaces has appeared at the U.S. Patent & Trademark Office. One of those interfaces involves solar power.
According to one embodiment of the invention, a portable electronic device includes, but is not limited to, a processor, a memory coupled to the processor for storing instructions, when executed from the memory, cause the processor to perform one or more functions, a battery coupled to provide power to the processor and the memory, and a battery charging manager coupled to charge the battery using power derived from a plurality of power sources including a solar power source. Other methods and apparatuses are also described.
Wendell B. Sander and Daniel A. Warren are the inventors.
Here's Apple's background and summary of the invention: "Handheld computing devices typically use standard battery chemistries including ni-cad, lithium-ion, and nickel-metal hydride. In order...| Read more »