... Portable power 5000mAh/I-phone 4/I-pad /2 usb port Product features: 1. Built-in high ... 5000mah, to make sure 500 times above charging cycle..2. Two USB output socket, can also charge iPhone , ... li-ion polymer core, rechargeable, 500times above charging cycle,2. Hard plastic shell, white color,3. The battery ... , and will switch off when it is filled.2. How to know the mobile power electricityPress the ...