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Mobile Computing

Monitoring main battery power

 

 

 

 

NOTE

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.

NOTE

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.