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40
Mobile computing
The RTC battery powers the RTC memory that stores your
system configuration settings and the current time and date
information. It maintains this information for up to a month
while the computer is turned off.
Monitoring main battery power
The computer's main battery light gives you an indication of
the main battery's current charge:
Glows amber while the main battery is being charged
❖
(AC adaptor connected)
Glows green when the main battery is fully charged
❖
Is unlit when the battery has discharged, the battery is not
❖
charging, or the AC adaptor is not plugged into the
computer or AC outlet
Flashes amber when the main battery charge is low and it
❖
is time to recharge the main battery or plug in the AC
adaptor
TECHNICAL NOTE: The RTC battery does not charge while the
computer is turned off, even when AC power is attached.
The RTC battery charges only while the computer is powered on.
Battery life and charge time may vary, depending upon power
management settings, applications and features used.
HINT: Be careful not to confuse the battery light
(
)
light
and the power button light (near the upper left corner of
the keyboard). When the on/off light or power button light flashes
amber, it indicates that the system is suspended (using the
®
Windows
operating system Standby command).
TECHNICAL NOTE: When your computer is using all of the power
provided by the AC adaptor to run applications, features, and
devices, the recharging of the battery cannot occur. Your computer's
Power Saver utility can be used to select a power level setting that
reduces the power required for system operation and will allow the
battery to recharge.
(
)
with the on/off
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