... 5)Portable&light weigh 5000MAH Dual USB portable mobile phone battery for iPhone 4 and iPad 1) Material: ABS 2) Capacity of internal rechargeable ... current: 5V, 500mA;6) Output voltage and current: 5V, ,500mAh and 5V,1000mAh7) Charging time for iPhone:60 minutes8) Working temperature:-10C-40C9 ...