1900mah backup battery charger for iphone 4

1900mah backup battery charger for iphone 4 1. external battery charger 2. dock charger 3. battery pack, power station 1900mah backup battery charger for iphone 4 1. external battery charger 2. dock charger 3. battery pack, N8, power station 1900mAh Portable power station For iphone 4 4G 4Th, dock charger, external battery charger Description 100% Brand New & High Quality and in Retail Box Give you the freedom to use your without the daily worries of running out of battery life! This battery offers an impressive 1900mAh of charging capacity. Can sync your with iTunes while it`s docked to the MiLi Power Pack The LED lights will show you the percentage of remaining battery life in the power pack Battery Capacity: 1900 mAh Input: DC 5V 0.5A Output: DC 5V 0.5A Standby time: 230 Hours Talk time: 6 hours on 3G, 12 hours on 2G network Internet use: 5 hours on 3G, 8 hours on Wi-Fi Audio play: 30 hours Video play: 8 hours Weight: 65g Compatible with 4/4G Packing includes 1 x Battery Case for iPhone 4 4G 1900MAH