Digital products is becoming increasingly popular, the growth is also very fast, digital products are widely used at the same time, consumers have had to face such a problem: how to improve the use of digital products time to play its biggest function. Along with such a problem, a convenient a Volkswagen carrying portable power supply will be born, we call it the mobile power. Also known as charge treasure, the advent of this type of external power supply products, to solve a longstanding problem for most consumers of digital products. Such products can provide long-term electricity supplies to the vast majority of mobile electronic digital products, digital products not charge or not used for a long time under the condition of no mains can continue to operate normally. portable mobile power pack has also been called "plug-in battery, external battery, charging treasure", the backup battery, digital charging partner "," external power ", the external power supply and so on, not only because the breadth of its application, but also because the the Hing Wah Cheung charge treasure not only has a large capacity storage capacity, and stylish portable, simple operation and safety characteristics of this series, makes Xinghua Xiang charge treasure in a listed acclaimed , also liked by the public.