... charge all iphones and Ipad,other mobile phone External cell phone battery charger for Iphone 4SProvides 360° protection for Apple's iPhone ... anti-overcurrent, anti-overload3)Compose Type : Injection Technology to make battery more stable4)Certifications : CE,,FCC, RoHS,ISO90015) Long life cycly ... ) Good consistency, low self discharge10) Light weight, small size External cell phone battery 2Ah-5Ah