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Power Management
Running the computer on battery power
❖ The battery is almost completely discharged. Leave the power
connected and the battery should begin charging after a few
minutes.
The main battery charges the RTC battery.
During normal use, the main battery keeps the RTC battery
adequately charged. Occasionally, the RTC battery may lose its
charge completely, especially if you’ve had the computer turned
off for a long time.
To recharge the RTC battery, plug the computer in and turn it on
for at least 24 hours.
Monitoring battery power
The computer’s main battery light gives you an indication of the
main battery’s current charge:
❖ Green indicates the AC adapter has fully charged the battery.
❖ Amber indicates the AC adapter is charging the battery.
❖ Off indicates that the battery is not being charged.
NOTE: Battery life and charge time may vary depending upon
power management settings, applications and features used.
❖ Flashing amber indicates that the computer is using battery
power, and the battery’s charge is running low.
HINT: Be careful not to confuse the battery light ( ) with
the on/off light ( ). When the on/off light flashes amber, it
indicates that the system is suspended (using Windows
®
XP Standby command).