Справочник Пользователя для Samsung R21plus

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Press 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.

  Click Start > Control Panel > Hardware and Sound > Power Options.

Alternatively, right-click the power measuring device icon ( ) in the notification area of the taskbar and select

Options.

 If the following screen appears, select one of the modes.