Solar backpack absorbs solar energy through solar panel and then turns solar energy into electric energy, which will be stored in the storage battery. solar backpack can charge different specification mobile phones through corresponding connectors. solar backpack is suitable to be used in the emergency situation when there is no electricity outdoors. If there is no sunshine for a long time, or changes full power battery for cell phone and moving charger is available. solar backpack is easy to operate, safe to use, convenient to take and fashionable. It is an ideal product for living and traveling. Whatever your lifestyle, Eclipse Solar Gear has a carry bag to fit your needs. The products are designed with highly durable materials and quality manufacturing to provide a robust mobile product. The solar charging solution is designed to provide an additional charging source for the most common mobile electronics applications.