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User's Manual
POWER AND
POWER-UP MODES
Secondary battery (option)
An optional secondary battery can be installed in the Slim Select Bay to increase
your battery operating time. Note the caution on Resume mode in the previous
section Main battery.
CAUTION: The secondary battery pack is a lithium ion battery, which
can explode if not properly replaced, used, handled or disposed of.
Dispose of the battery as required by local ordinances or regulations. Use
only batteries recommended by TOSHIBA as replacements.
Real time clock battery
The Real Time Clock (RTC) battery provides power for the internal real time clock
and calendar. It also maintains the system configuration.
If the RTC battery becomes completely discharged, the system loses this data and
the real time clock and calendar stop working. The following message appears
when you turn on the power:
*** Bad RTC battery ***
Check system. Then press [F1] key . . . . . .
CAUTION: The computer’s RTC battery is a lithium ion 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 of. Dispose of the battery as required by local
ordinances or regulations.