EZOPower Solar External Backup Battery is the perfect solution for emergency power and power on the go. It includes a built-in battery that can be charged either by provided USB cable or sunlight via the solar panel.EZOPower Solar External Backup Battery includes a 2 USB output to charge your cellphone, iPhone, iPod, MP3, Bluetooth headset and more on the go. This is the perfect unit for campers, travelers, gadget enthusiasts, hikers, and power hungry consumers.Battery type: Lithium PolymerBattery capacity: 6000mAhmicro-USB Input: 5V 1ASolar panel Input: 5V 100mAUSB Output I: 5V 2.1A (charge iPad, iphone, smartphone, tablet)USB Output S: 5V 2.1A (charge Samsung tablet, iphone, smartphone, tablet)Maximum output current for Output I & S: 2.1AWeight: 178gDimension: 130 x 76 x 16 mm4 LEDs indicate battery capacityOn/Off button to start or end chargingIntegrated microchip prevents overchargingPackage include battery, USB cable & adapter tips(APPLE iPhone/iPod tips are not included.).Recharge this battery by PC/laptop/Wall or direct sunlight.NOTE:This unit will only charge up to 50-60% when using the solar charging - Great for emergency power. Use USB charging to charge the internal battery fully.