Dell Precision M6300 (Late 2007): Charging the Battery Removing the Battery

Charging the 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.

NOTE: With Dell ExpressCharge™, when the computer is turned off, the AC adapter

charges a completely discharged battery to 80 percent in approximately one hour

and to 100 percent in approximately two 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.

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 information about resolving problems with a battery, see "Power

Problems" in your User’s Guide.

Removing the Battery

CAUTION: The battery is designed to work with your Dell computer. Using an

incompatible battery may increase the risk of fire or explosion. Replace the

battery only with a compatible battery purchased from Dell. 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 all other external cables from

the computer.

NOTICE: You must remove all external cables from the computer to avoid possible

connector damage.

Quick Reference Guide 19