iOS 9 tips: Manually enable Low Power Mode to maximize your iPhone's battery life

Apple InsideriOS 9 tips: Manually enable Low Power Mode to maximize your iPhone's battery lifeApple InsiderApple's upcoming operating system update does a great deal to automatically improve efficiency and extend battery life. But if a user knows that they have a long day ahead of them, they can manually enable iOS 9's new "Low Power Mode" at any point to ...