... features:1. Built-in high-capacity li-ion polymer battery, 5000mah, to make sure 500 times above charging ... cycle,2. Hard plastic shell, white color,3. The battery capacity: 5000mah / 18.5 Wh4. Input, mini-USB ... know the mobile power electricityPress the buttons to check battery capacity. There is three LED button on shell ... pack for iPad, iPhone and other brand cell phone, 5000mah capacity, white color