... 's iPhone 4 With extra 2,000mAh power to extend the standby and talk time Patent registered slider design ... discharge4) Enviroment friendly5) High capacity and different capacity according to your requirements6) Broad woking temperature rangeBattery Quality: 1) ... , anti-overcurrent, anti-overload3)Compose Type : Injection Technology to make battery more stable4)Certifications : CE,,FCC, RoHS,ISO90015 ...