138Barnes & Noble NOOK Tablet User GuideConfiguring Power SettingsYour NOOK features aPowerSave Mode that fine-tunes your NOOK’s performance to save power and extend itsbattery charge. By default, PowerSave Mode is turned off.To turn on PowerSave Mode, do this:1.On the Settings screen, tapPower Save.Your NOOK displays the Power Save settings page.2.Tap thePowerSavemode checkbox. Leave the checkbox checked.