If you just updated your iOS system, you may feel as your battery life reduced quite a bit. But don’t worry there are ways to change the situation and prolong the usage time. The first thing that you need to do is go to Settings>Battery to see a list of the apps that use the most power. You can easily limit them or set to turn off completely when the charge is low. The second great thing that you can do is to go on Low Power Mode. Another way to save power is to lower screen brightness, disable some visual effects, turn your flashlight down to low and many others. Watch the whole video to know all secrets of prolonging your battery life on iPhone iOS 11.