Samsung NP455R4JE 사용자 설명서

This program helps you use the battery more efficiently 

and supports the power mode optimized for the operating 

environment.

  Click Charms menu on the Desktop > Settings 

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Control Panel > Hardware and Sound > Power Options.
Alternatively, right-click the power measuring device icon 

 in the notification area of the taskbar and select Power 

Options.

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