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6-6 User’s Manual
Power and Power-Up Modes
To ensure that the battery pack maintains its maximum capacity, operate
the computer on battery power at least once a month until the battery pack
is fully discharged. Refer to Extending battery life in this chapter for
procedures. If the computer is continuously operated on AC power through
an AC adaptor for an extended period, more than a month, the battery may
fail to retain a charge. It may not function efficiently over the expected life of
the battery and the Battery indicator may not indicate a low-battery
condition.
Slice Expansion Battery (Provided with some models, or
option)
The Slice Expansion Battery is included with some models, or can be
purchased separately as an optional accessory.
For detailed information on this battery, refer to Slice Expansion Battery
section in Chapter 8.
Real Time Clock (RTC) 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:
S **** RTC battery is low or CMOS checksum is
inconsistent ****
Press [F1] key to set Date/Time.
You can change the Real Time Clock settings by pressing the F1 key. Refer
to Chapter 9 Troubleshooting for the detail.
■ Do not remove the battery pack while the computer is in Sleep Mode.
Data is stored in RAM, so if the computer loses power it will be lost.
When the computer is powered off in Sleep Mode, and the AC adaptor
is not connected, the battery pack supplies power to maintain data and
programs in memory. If the battery pack is completely discharged,
Sleep Mode will not function and the computer loses all data in
memory.
The Slice Expansion Battery 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.
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 of.
Dispose of the battery as required by local ordinances or regulations.