In recent years, the small devices the use of battery-powered has rapid developed of such as: tablet PC, handheld game consoles, video players, digital photo frames. In general, these devices use rechargeable lithium-ion battery as a power source. Some common charging solutions including wall charger and adapter class Universal Serial Bus Class charger. While these chargers solution is lithium-ion battery of a low-cost solution, but there are also these chargers a common drawback: It depends on the main power supply to the work operation. This dependence on mains electricity increases the cost of users, but also increased greenhouse gas emissions. And because the main power supplies dependence, these portable charging solutions are also greatly reduced. Order in an environmentally beneficial way to extend battery life, use of solar panels to collect solar energy charger natural light may be an ideal solution. Another advantage of solar charger is that it provides a movable charging solution.
