How to Turn On Low Power Mode on Your iPhone
By Conner Carey
When your iPhone battery reaches below 20%, you will get a notification asking if you want to turn on Low Power Mode. Low Power Mode allows you to preserve your remaining battery by lowering the brightness on your screen, auto-locking the screen after 30 seconds of inactivity, and disabling other operations. But what if you want to preserve your battery before it reaches 20%? Here's how to turn on Low Power Mode.