Solar charger solar energy into electricity through the photoelectric conversion device, the principle is: the light through the photoelectric conversion into electrical energy and stored in the built-in lithium battery inside, and then through the control circuit built-in lithium battery through the output port to the mobile phones, digital cameras, MP3, MP4, PSP and other digital products charger, solar charger in the case of long-term, no sunlight, or by electricity or computer USB to the built-in rechargeable lithium battery for travel, Tourism, long-distance travel ship, field operations, such as backup power supply environment.