Samsung Galaxy S6 Edge: How to Enable, Use and Disable Ultra Power Saving Mode in Android 5.1.1 Lollipop

Ultra power saving mode is an enhanced power saving mode that can be used to extend your battery power so you can use your phone longer, even when the battery level is low. When ultra power saving mode is enabled, your phone will save battery power by changing the color of the screen to grayscale, applying a simplified home screen, restricting app usage to only essential and selected apps,