You can get here more quickly by tapping the battery percentage reading at the top of the Quick Settings shade. Setting it upīattery saver mode’s controls are buried in the Settings app: Open the Settings app, then navigate to the Battery section-it’s under the Device heading. Your phone will feel sluggish and unresponsive, but at least you'll have something to tide you over until you can get back to a charger.īattery saver mode switches itself off when your phone is connected to a power outlet, however. The tradeoff, of course, is that you give up some processing speed and convenience on your phone. Many Android apps will automatically sync in the background throughout the day to fetch new information from the Internet-for example, the Gmail app will fetch new mail periodically, and the Twitter app will continually get updates on whether anyone retweeted or mentioned you, all in the background.īattery saver mode suppresses this sort of background app refreshing and throttles down your phone’s performance-among other things-to extend your battery life. It can help boost your phone’s run time, and it only takes a few minutes to set up. If your phone’s battery runs dry a little too quickly for your tastes, Android Lollipop’s battery saver is for you.