Dell Latitude D531 (Mid 2007) - Manual (Page 33)

Using a Battery 33
NOTE: Some PC Cards or ExpressCards may not operate correctly after the computer exits hibernate mode.
Remove and reinsert the card (see "" on page 69), or simply restart (reboot) your computer.
To exit hibernate mode, press the power button. The computer may take a short time to exit hibernate
mode. You cannot make the computer exit hibernate mode by pressing a key or touching the touch pad.
For more information on hibernate mode, see the documentation that came with your operating system.
Configuring Power Management Settings
You can use the QuickSet Power Management Wizard or Windows Power Options Properties to
configure the power management settings on your computer.
• For more information about QuickSet, right-click the QuickSet icon in the taskbar and click Help.
• To access the
Power Options Properties window, click the Start button and then click Control Panel→
Performance and Maintenance→ Power Options. For information on any field in the Power Options
Properties window, click the question mark icon on the title bar, and then click on the area where you
need information.
Charging the Battery
NOTE: Using the AC adapter, all batteries use Dell™ ExpressCharge™. When the system is off, the battery will
reach 80% of it’s capacity during charging in about one hour, and 100% of it’s capacity in about two hours. You can
leave the battery in the computer as long as you like. The battery’s internal circuitry prevents the battery from
overcharging.
NOTE: You must use a 90-Watt AC adaptor to use ExpressCharge a 9-cell battery.
When you connect the computer to an electrical outlet or install a battery while the computer is
connected to an electrical outlet, the computer checks the battery charge and temperature. If necessary,
the AC adapter then charges the battery and maintains the battery charge.
If the battery is hot from being used in your computer or being in a hot environment, the battery may
not charge when you connect the computer to an electrical outlet.
The battery is too hot to start charging if the
light flashes alternately green and orange. Disconnect
the computer from the electrical outlet and allow the computer and the battery to cool to room
temperature. Then connect the computer to an electrical outlet to continue charging the battery.
For more information about resolving problems with a battery, see "Power Problems" on page 93.
Replacing the Battery
CAUTION: Using an incompatible battery may increase the risk of fire or explosion. Replace the battery only
with a compatible battery purchased from Dell. The battery is designed to work with your Dell™ computer. Do not
use a battery from other computers with your computer.
CAUTION: Before performing these procedures, turn off the computer, disconnect the AC adapter from the
electrical outlet and the computer, disconnect the modem from the wall connector and computer, and remove any
other external cables from the computer.