Battery Case XP-1800 for iphone4s battery

Input: 5V 500mAOutput: 5V 1000mACapacity: 1800mAhBattery type:Polymer Lithium Ion BatteryLifetime of Batter: ≥500 timesDimension: 123 X 59 X 15 mmWeight:63g

Unique suckers firmly suck iPhone4/4s, It charges and protects the iPhone4/4s at the same time. The product is thin and delicate and don't undermine the overall appearance of the iPhone4/4s. The product shape design is perfect for iPhone4/4s together as one.iPhone4/4s just as wrapped a stylish coat. Slim and stylish design, to ensure the product with iPhone4 use portability and the user's touch, talk or play games regardless of ease.

Microcomputer chip tests and displays the capacity and working status of product. It has protection of overcharging ,over-discharging, over-current ,short-circuit. It protects your phone carefully.

Automatically detects the load and automatically shut down when no load, save power consumption.

 When iPhone4/4s installed in the product, iphone4/4s and product can all be charged by using charging cable of iPhone4/4s connecting to the Apple charger or USB port of computer.

Able to read data of iPhone4/4s through the product port by using the data cable of iPhone4/4s. Needs not to uninstall the iPhone4/4s when to read the data of iPhone4/4s.

Ensure good compatibility with iPhone4 and has no any impact on the call and other use of iPhone4/4s

external Battery backup XP-1800