Toshiba Tecra M11-SP4002 User Manual page 141

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 turnin on the computer
and then pressing the F2 key when the TOSHIBA Leading Innovation
>>> screen appears. Please refer to Chapter 8
information.
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.
■
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.
■
The battery pack are lithium ion batteries, which can explode if not
replaced, used, handled or disposed of properly. Dispose of the battery
as required by local ordinances or regulations. Use only batteries
recommended by TOSHIBA as replacements.
■
The computer's RTC battery is a Ni-MH battery and should be
replaced only by your dealer or by a TOSHIBA service representative.
The battery can explode if not properly replaced, used, handled or
disposed. Dispose of the battery as required by local ordinances or
regulations.
■
Charge the battery pack only in an ambient temperature between 5
and 35 degrees Celsius. Otherwise, the electrolyte solution might leak,
battery pack performance might deteriorate and the battery life might
be shortened.
■
Never install or remove the battery pack without first turning off the
power and disconnecting the AC adaptor. Never remove the battery
pack while the computer is in Sleep Mode. Data could be lost.
User's Manual
**** RTC Power Failure ****
Check system. Then press [F2] key.
Power and Power-Up Modes
Troubleshooting for further
6-4