iPhone4 plug-in battery

"IPHONE mobile power / plug-in battery
 • Battery type: Lithium battery
 • Weight: 80g
 • Capacity: 1900mAh
 • Input: 5V/500mA MAX
 • Output: 5V/800mA MAX
 . Cycle life:> 1000
 Working temperature: -10 ℃ -40 ℃
 . Transport temperature: -20 ℃ -50 ℃
  Features:
 1 strong, durable, environmentally friendly construction materials for your iphone put on a non-slip coat, all-round protection against scratches and impact intrusion.
 (2) excellent design to add luster to your iPhone.
 3 high capacity to provide backup power for the iphone 4 double standby time
 4. Reasonable shape design, without removing the shell you can enjoy all the features of the iPhone 4
 5 effective way to avoid short circuit, overcharge, over discharge, and failure in extreme conditions. "