Using a Battery: Dell Latitude D620 User's Guide
To access the
Power Options Properties
window, click the Start button
→
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:
With Dell ExpressCharge, when the computer is turned off, the AC adapter charges a
completely discharged battery to 80 percent in about 1 hour and to 100 percent in approximately 2
hours. 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.
NOTE:
If you want to use a 9-cell battery to obtain Dell ExpressCharge, you need to use it in
conjunction with a 90-W AC adapter.
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.
Replacing the Battery
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.
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.
NOTICE:
You must remove all external cables from the computer to avoid possible connector damage.
For information about replacing the second battery, if applicable, see
Media Bay
.
To remove the battery:
1. If the computer is connected to a docking device (docked), undock it. See the documentation that
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