Overview: Type: Li-ion polymer battery Capacity: 2600m Ah Output Voltage: 5.5V / 6V Output Current: 350-800m Ah Full Charge Time: 3-4 hours AC power, 6-8 hours solar Solar Panel: Polycrystalline silicon panel Power Output Ports: USB (Universal Serial Bus), DC Out Voltage Switch: 5.5V, 6V Built-in LED Flashlight Specification: Dimensions:5.51in*3.15in*1.18in Weight:8.05oz