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Mobile Computing
Monitoring battery power
Depending on your system, the RTC battery may only
charge while the computer is turned on.
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 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 white when the main battery is fully charged
Battery life and charge time may vary, depending upon
power management settings, applications and features
used.
❖ Flashes amber when the main battery charge is low and
it is time to recharge the main battery or plug in the AC
adaptor
If the AC power light flashes amber during charging,
either a battery pack is malfunctioning, or it is not
receiving correct input from the AC power supply.
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