User’s Manual 6-4
Power and Power-Up Modes

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
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.
■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 lithium ion battery pack 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 lithium 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.
Never remove the battery pack while the Wake-up on LAN function is
enabled. Data will be lost. Before you remove a battery pack, disable the
Wake-up on LAN function.