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Extending the Battery Usage Time
Decreasing the LCD Brightness
Press the Fn + () keys on the keyboard to decrease the LCD brightness to extend the battery usage time.
Using Easy Battery Manager
Easy Battery Manager is a power management program that enables using the battery power efficiently. You can select an optimized power mode according to your requirements.
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Click Start > Control Panel > Hardware and Sound > Power Options.
Alternatively, ) in the notification area of the taskbar and select Power Options.
If the following screen appears, select one of the modes.
Samsung Optimized
Multimedia