How to turn power saving mode on and off on my Samsung Galaxy Note 3

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Power saving mode (extended standby mode) optimizes battery life on your Samsung Galaxy Note 3. When the screen is off, your phone will save power by lowering the screen brightness, turning off haptic feedback and limiting the phone's performance. You will still receive messages and notifications.
1. Touch Apps.
2. Scroll to and touch Settings.
3. Touch General.
4. Touch Power saving.
5. Power saving mode is now on.
Touch the tab again to turn off power saving mode.