1 Find Your Own Battery Killers
Many users have relied on personal experience or third-party anecdotal information to figure out which apps are the worst for battery life. But that doesn’t have to be the case.
There’s actually a section in Settings that breaks down which apps are eating up the most battery life for you. Just open Settings and tap on Battery. In iOS 11.3 and newer, this menu will also let you know what specific functions of the app are eating up so much battery.
In addition to app battery usage information, the Battery Health section also has other power-saving analysis and tips. For example, it’ll let you know if your brightness is too high.