The charger with built-in lithium battery employs solar energy!<br>A good cell phone must have a charger with endurance ability. This is a solar panel charger with built-in lithium battery， which is designed specifically for iPhone. You have come the right place if you are a loyal fans of iPhone. The solar charger employs solar energy to supply electricity to iPhone. You can place it in the sunlight to obtain energy. The built-in lithium-ion polymer battery can double the battery life of iPhone and fill into 120% capacity， enough to use for a long time. It is lightweight and thin， so you can carry it anywhere， such as home， car， office or outdoors etc. It will be the good replacement， order now!                                    Features            Compact design is made for easy storageConnect USB cable to the computer to charge for silica sheath， with power increasing， indicators will change according to the charging timeThis is just a emergency equipment for your phone when it is low power<br>                                                            Specifications            Lithium ion polymer battery capacity    3.7V 1500mAh    <br>Output voltage    5.4V (max)    <br>Output current    600ma (max) + solar battery 100ma (max)    <br>Charge voltage    Solar battery 6V USB / DC 5V    <br>Charge current    100ma (max) + 500ma (max)    <br>Full charging time    &lt; 3 hours    <br>Peak power supplied by photocell    0.61w    <br>Weight    157g / 5.54oz    <br>Color    Blue    <br>Dimensions    11 x 4 x 16.5cm /4.33" x 1.57" x 6.5"(L x W x H)    <br>Compatible with    iPhone 3G/3GS/4/4S    <br>                                                            Package Includes            1 x 1500mAh Solar Panel External Battery Case for iPhone 3G/3GS/4/4S Blue<br>1 x Data Cable<br>