Toshiba Satellite L650 Series User Manual page 117

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
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
The RTC battery does not charge while the computer is turned off even if
the AC adaptor is attached.
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.
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The firmware has detected that a CMOS
battery fail occurred. <F1> continue
The firmware has detected that a CMOS
battery fail occurred. <F1> continue,
<F2> to setup
Troubleshooting
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.
for further information.
Power and Power-Up Modes
6-4