Samsung Galaxy Tab E Lite SM-T113 - Ultra Power Saving Mode

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Ultra Power Saving ModeSettings
Ultra Power Saving Mode
Conserve battery power by
automatically adjusting the
screen brightness, limiting the
performance of the CPU, and
other power reduction activities.
1. From a Home screen, tap Apps >
Settings.
2. Tap Ultra power saving mode.
3. Tap On/Off to turn the feature on.
4. Read the displayed information and tap Turn on.