Description: Brand Name: Lepow Model Number: POKI 5000mAh Batteries: lithium ion polymer Dimension: 128*630*13 Input Power: 5V\/2100mAh Output power: 5V\/2100mA Features: The first thing worth noticing is the thin and stylish design of POKI. POKI uses a high density lithium polymer battery allows for the portable charge to be very thin, and safer because lithium polymer has a lower risk of overheating comparing to lithium ion. Easy to power on-just swipe the long metal bar on the side of the battery. Includes a smart chip which stop charging the device when the battery is full to avoid over charging. 90% conversion rate-The conversion rate is the highest I have seen in external batteries, thanks to the lithium polymer battery which has only 10% power lose. The battery comes in a nice carrying case, and a short USB cable which is as unique and stylish as the battery. Package inlcude: