... iphones and Ipad,other mobile phones External cell phone battery chargers for Iphone 4SProvides 360° protection for Apple's iPhone ... -overcurrent, anti-overload3)Compose Type : Injection Technology to make battery more stable4)Certifications : CE,,FCC, RoHS,ISO90015) Long life ... :1) High energy density2) High working voltage for single battery cells3) Pollution-free4) Long cycle life5) No memory effect6 ...