1,Li-ion battery 2000mAh, can fully charge iPhone 2,Apple output dock 3,Extra-efficient solar panel for a rapid charge ... Solar Panel(mono or multi-crystalline): 5.5V/110mA2, Li-ion rechargeable Battery: 3.7V/2,000mAh3, Mini USB input: 5V/1A4, Output voltage ... LED indicators shows power level, each represents 25% of battery usage8, Protection: reverse current protection circuit integrated to prevent ...