iPhone 6S /6 Plus Battery Case [Bonus-Tempered Glass Screen Protector] - Xcomm 4200mAh External Battery Case Charger Protective Cover for iPhone 6 / 6S Plus (5.5 inch) [Apple MFi Certified] (Black) This ergonomic, form-fitting, impact-resistant 2in1 battery case keeps your iPhone charged while protect it on the go, and the precise cuts and accurate design allows easy access to all ports and buttons. 130% Extra battery life: add 20 + hours talk time or 15+ hours web browsing time. Grade-A lithium-polymer battery that comes with smart overvoltage and overcurrent protection. Apple MFi Certified. Tested to be compatible with iPhone 6 plus IOS Operation System and following updates. Won't left you stranded running out of power with accessories not supported warning message from Apple IOS system. To charge & sync your iPhone 6 / 6s plus with included Micro USB cable, no need to remove battery case. With extra bonus - Tempered Glass Screen Protector. Battery Indicator: The 4 LED lights at the back of the case tell you exactly how much juice it's got left when you press the "power" button. It also indicates the charging status.