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Mobile Computing
Running the computer on battery power
Charging the batteries
To charge the main battery while it is in your computer, plug the
computer into a live electrical outlet. The battery charges whether
the computer is on or off.
The main battery light ( ) glows amber while the battery is being
charged, and glows green when it is fully charged.
The battery may not start charging immediately under the
following conditions:
❖The battery is extremely hot or cold. To ensure that the battery
charges to its full capacity, wait until it reaches room
temperature.
❖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.