When enabled, your Samsung Galaxy Tab 2 automatically analyzes the screen and adjusts the brightness to conserve battery power.
From a Home screen, touch Apps > Settings > Power saving.
On the Power saving tab, touch the OFF / ON icon to turn Power saving on or off.
Turn Power saving on and touch the Power saving mode settings (CPU power saving or Screen power saving) to enable or disable them.
Touch Learn about power saving to display more information about saving power.
This article will work on both Samsung Galaxy Tabs; including Samsung Galaxy Tab 2 7.0 and Samsung Galaxy Tab 2 10.1.