Extending the Battery Usage Time
Decreasing the LCD BrightnessPress the Fn + (
) keys on the keyboard to decrease the LCD brightness to extend the battery usage time.
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 OptimizedMultimedia
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