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This is short video on how to save power on your Samsung Galaxy S4 using the AVG Antivirus
application.
By default, the trigger point for saving power is when the battery drops below 30%. At this
point a warning will appear in your notification intray. The neat thing is if you tap on this
message it will take you directly to some power saving options.
The first thing you can do is set the threshold at when the phone should warn you that you
are low on power. The four options being: 10, 30, 50% or completely off.
You can save battery life by simply unticking any of these power draining options such as
wifi, gps and automatic brightness. These settings will then come into effect whenever
your power falls below 30%.
From this screen you can also see an estimate of how much charge your phone has left by
pressing in the top left of the screen and then selecting the battery consumption option.
This will break down your remaining time in different units such as talk time, audio playback,
video playback and internet browsing.
Now, for more permanent battery saving options that are always on, go to the settings icon
and then choose my device. Scroll down until you see the power saving option. This is a
toggle on/off option with three features that restrict the CPU performance, lower the power
level of the screen and turn off haptic feedback which are those small vibrations when you
press the back button.
Of course there are plenty of battery saving applications out there to experiment with
so if AVG doesn't take your fancy, visit the Googleplay store for alternatives.