The built in li-polymer battery provides nearly a 100% extra battery power, while shielding your iPhone from nicks and bruises.
The integrated solar power can give you additional power. You can charge the battery case directly through an electrical outlet using the Micro-USB. Exposing the solar panel to direct sunlight to charge the power case.
2500mAh Li-Polymer Battery MFi Case.
Solar panel: Sun Power C60.
Chargeable via Solar or USB port.
LED indicator, Power Button, Headset Jack.
Input: 5V-1A Output: 5V-1A.