Dell Precision M2300 (Late 2007): Low-Battery Warning Charging the Battery

Low-Battery Warning Charging the Battery: Dell Precision M2300 (Late 2007)

To check the battery health using the charge gauge, press and hold the status

button on the battery charge gauge for at least 3 seconds. If no lights appear,

the battery is in good condition, and more than 80 percent of its original

charge capacity remains. Each light represents incremental degradation. If

five lights appear, less than 60 percent of the charge capacity remains, and you

should consider replacing the battery. See "Specifications" in your User’s

Guide for more information about the battery operating time.

Low-Battery Warning

NOTICE: To avoid losing or corrupting data, save your work immediately after a

low-battery warning. Then connect the computer to an electrical outlet. If the

battery runs completely out of power, hibernate mode begins automatically.

By default, a pop-up window warns you when the battery charge is

approximately 90 percent depleted. You can change the settings for the

battery alarms in QuickSet or the Power Options Properties window. See

"Configuring Power Management Settings" in your

User’s Guide

for

information about accessing QuickSet or the Power Options Properties

window.

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 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.

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.

Quick Reference Guide 17