Dell Latitude LM - Manual (Page 15)

System Overview 1-5
Battery Charge Gauge
There is a battery charge gauge on the main and second-
ary battery. When you press the battery test button
(labeled “PUSH”), the appropriate indicator lights up for
a few seconds to indicate the amount of charge remaining
in the battery.
P
assword
CAUTION: Dell strongly recommends that the user back up the pass-
word onto a diskette. If the user forgets the password and does not have
it on diskette, the computer cannot be accessed. In that case, the com-
puter must be returned to Dell at the user’s expense. Dell technicians will
erase the password by shorting C146, recharge the CMOS battery, and
send the computer back at the user’s expense. For the procedure to erase
the password, see “Deleting the Password” in Chapter 4.
• The AC power indicator with the battery status in-
dicator means the battery is defective.
• An indicator with one bar on the left means a battery is
too hot. Allow the battery to cool to room temperature.
• The AC power indicator with the battery status in-
dicator and one bar means that the battery is too
hot (40
°
C [104
°
F] or more) to start charging. Charg-
ing starts automatically when the battery cools to
below 40
°
C.
• An indicator with no bars means that battery power is
low (about 80 percent depleted). This is the first low-
battery indication and the computer warns the user
with three short, audible beeps. There are about
20 minutes of battery life remaining.
• A blinking indicator with no bars means that battery
power is critically low (about 95 percent depleted) and
needs recharging. There are about 5 minutes of battery
life remaining.
• An indicator with bars on the right side of the icon
indicates the percentage of battery life remaining.
Each bar equals 10 percent of battery life.