Voltiac's Solar Switch Charger Bag is a water resistant solar charger with 4 watts of solar charging power and a 3,000 mAH Lithium Polymer battery.  This Eco friendly bag solar charges its included battery to charge any 5 volt 500 mAH USB device, including the iPhone and almost any smart phone.  The battery has enough capcity to charge you iPhone and most any other smart phone twice without recharing in the sun.

Voltiac Switch Solar Charging Bag Specifications

Two 2.0 Watt Solar Panels generate power in sunlight. They are waterproof, lightweight and built to withstand abuse.

Power: 4 Watts total peak output at 6 or 12 Volts (selectable depending on charging application)

Charge times: 4-5 hours in the sun will fully charge a typical phone, 1 hour will provide about 3 hours of talk time. Universal USB Battery stores 3000 mAh of power for use anytime and is specially designed to charge efficiently from solar panels. When not in the sun, the battery can be charged using the USB Power Cable making it just as useful on the grid as off.

Charge times: Battery will be fully charged from 7 hours of direct sun, 5.5 hours from USB port on laptop  

Capacity: 3,000mAh, 11 Watt hour capacity

Output: 5.5V, 600mA via USB port

Input: 4.8-12V, 650 mA