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6-4 User’s Manual
Satellite A660/A660D, Satellite A665/A665D
Real Time Clock (RTC) battery
The Real Time Clock (RTC) battery provides power for the internal real
time clock and calendar function and also maintains the system
configuration while the computer is turned off. If the RTC battery becomes
completely discharged, the system will lose this information and the real
time clock and calendar will stop working - in this instance the following
message will be displayed when you turn on the power:
S **** RTC Power Failure ****
Check system. Then press [F2] key.
You can change the Real Time Clock settings by turning the computer on
while pressing the F2 key and then release the F2 key when the
TOSHIBA Leading Innovation >>> screen appears. Please refer to
Chapter 8, Troubleshooting, for further information.
Care and use of the battery pack
This section provides the important safety precautions in order to handle
your battery pack properly.
Refer to the enclosed Instruction Manual for Safety and Comfort for
detailed precautions and handling instructions.
The RTC battery does not charge while the computer is turned off even if
the AC adaptor is attached.
■ Make sure the battery is securely installed in the computer before
attempting to charge the battery pack. Improper installation could
generate smoke or fire, or cause the battery pack to rupture.
■ Keep the battery pack out of reach of infants and children. It can cause
injury.