Apple 12 iOS 9 Release Date Tips Published 10 years ago on 09/15/2015 By Adam Mills <>5 / 12Make Sure Your Device is Charged You'll need 50% battery to install the iOS 9 update if you're not connected to a power source. Make sure your device is charged or you have easy access to a power source before you go to install the iOS 9 update on your device. <>5 / 12 Related Topics:AppleiOSiOS 9iPadiphoneiPod Touch As an Amazon Associate I earn from qualifying purchases.