Baidatong A005 Power Case for iphone 5s battey case for iphone 5s (Black) 100% Brand New Ergonomic, form fitting, fully protective ultra-resistant case and battery Input:DC 5V 800mAh /Output:DC 5V 800mAh It can easily add 7 hours of talk time and 8 hours of web browsing time. Built in short circuit and over charge protection  Compatible with all versions of IOS 8.0 and older