Using a Battery 51• To use Windows Power Options, do one of the following:• Click Start → Control Panel→ Hardware and Sound→ PowerOptions, and then select a power plan in the Select a power planwindow.or• Click the icon in the notification area, click Power Options, andthen select a plan in the Select a power plan window.Using the Sleep Power StateRather than shutting down your portable computer, use the Sleep power stateto conserve power. Sleep automatically saves your work to your hard drive, andthen returns you to your previous work session without restarting yourcomputer.NOTICE: If your computer loses AC and battery power while in Sleep state, it maylose data.To enter Sleep state:• Click Start , click , and then click Sleep.or• Depending on how you set the power management options in theWindows Power Options or Dell QuickSet, use one of the followingmethods:• Press the power button.• Close the display.• Press .To exit Sleep state, press the power button.Charging the BatteryNOTE: Charge time is longer with the computer turned on. You can leave thebattery in the computer for as long as you like. The battery’s internal circuitryprevents the battery from overcharging.
