... battery power station for iPhone 4G 1,400 standby hours, 7hours on 3G network, 2,Capacity:2300mAh 3.Fit for iPhone 4G Specification:1, battery power station for iPhone 4G2, Battery ... type:Li-ion3, Capacity:2300mAh4, Fit for:Iphone 4G5, ... 's capacity is 2000mAh, which enables Power for iPhone 4G a) 400 standby hours, b) 13 ...