How to enable Power saving mode in Samsung Galaxy A7-2016(SM-A710FD)?

Power Saving mode minimizes battery usage to extend battery life.  

Navigate to Apps → Smart Manager → Battery → Power saving mode → Enable 

Pictorial representation of the above settings is as below:

a). Tap on Apps icon from the Home screen.

b). Tap on Smart manager icon.

c). Select and tap on Battery option.

d). Tap on Power saving mode.

e). Slide the Switch to right side to enable it.

CLICK HERE to know how to see Battery usages in Samsung Galaxy A7-2016 ( SM-A710FD ).