NOVELTY - The solar power package has solar power source (401) e.g. solar cell which is operable to derive solar power from solar energy. A power charger is an electronic load (403) that is operable to provide the derived solar power to the portable electronic device by charging a battery of the device. The derived solar power is provided in a plug-and-play fashion when the portable electronic device is coupled to the package.    USE - Solar power package for use with portable electronic device such as media player, notebook computer, tablet computer, cellular phone, image processing device, and handheld computing device (all claimed). Can also be used in laptop computer and personal digital assistant (PDA).    ADVANTAGE - The output of the solar power source can be maintained within a consistent range and chances of a sharp drop of voltage or power output from the solar power source can be eliminated, so as to provide power to an electronic load with relatively high stability. The smart power interface can be used to efficiently provide power to the portable electronic device from a variety of different power sources based on the operating circumstances of the portable electronic device. The controller can be used to communicate with one or more system components to enhance the solar power charging techniques based on the operating environment or status of the system components. The cost of the portable device can be reduced due to the usage of power packages that can be plugged into the portable device through interface circuit, thus the solar power source can be used effectively with respect to the portable device.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) method for providing power to portable electronic device with solar power package; and    (2) power package for providing solar power to external device.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram illustrating the system for operating electronic device with solar power.    Circuit (400)    Solar power source (401)    Voltage converter (402)    Electronic load (403)    Controller (404)