Dell Vostro 1700 (Early 2009) - Manual (Page 55)

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