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Mobile Computing
Monitoring main battery power
5.375 x 8.375 ver 2.3.2
The above error message may vary by computer model.
The RTC battery does not charge while the computer is
turned off even when the AC adapter is charging the
computer. The RTC battery charges when the computer is
powered on.
If the RTC battery is low, the real-time clock and calendar
may display the incorrect time and date, or stop working.
To recharge the RTC battery, plug the computer into a live
electrical outlet and leave the computer powered on for 24
hours.
It is seldom necessary to charge the RTC battery because
it charges while the computer is on. If the RTC battery is
low, the real-time clock and calendar may display the
incorrect time and date or stop working.
When Hibernation mode is enabled and the RTC battery
is completely discharged, a warning prompts you to
reset the real-time clock.
The computer can be used while the RTC battery is being
charged, although the charging status of the RTC battery
cannot be monitored.
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 adapter connected).
❖ Glows blue when the main battery is fully charged.
NOTE
NOTE