Features:

Wide compatible
Powerful with long operation time
Double USB output
Portable and convenient
High efficiency of power conversion
Electricity-saving function
User friendly
Long cycle life
Rapid charge
Environmental friendliness & economic efficiency

Specifications:

Model: external power bank for iPhone, iPad
Capacity: 5000mAh/18.5Wh
Input: 5V, 1A
USB Output1: 5V, 1A
Output2: 5V, 500mA
Compatibility:
Port 1: iPhone, iPad
Port 2: cellphone, iPhone, iPod, all digital devices charged via USB port
Connector: 8, including PSP, Nokia, Micro USB, Mini USB, LG, Samsung, iPod, Sony Ericsson K750
Dimension: 110 x 70 x 16mm
Weight: 151g
Color: White
Kindly reminder: please read the user manual carefully about using and warning before operating this device
Package size: 211 x 113 x 21mm
Package contains:
1 x Power Bank
1 x USB  Cable
8 x Connectors
1 x English User Manual


iphone 4 external battery