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User’s Manual 6-4
Power and Power-Up Modes
Battery pack
When the AC adaptor is not connected, the computer's main power source
is a removable lithium ion battery pack, also referred to in this manual as
the battery.
You can purchase additional battery packs for extended use of the
computer away from an AC power source.
The battery is a disposable item. When its operation becomes short even
when fully charged, replace it with a new one.
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:
When this error appears, the following action is recommended.
1. Plug in AC over 24 hours
2. Press F2 to enter BIOS setup menu
3. Set correct time and date
■ The 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.
■ Do not remove the Battery Pack while the computer is in Standby
mode. Data is stored in RAM, so if the computer loses power, it will be
lost.
■ Battery type (depending on the model purchased):
8 cell-PA3385U-1BAS, PA3385U-1BRS
12 cell- PA3383U-1BAS, PA3383U-1BRS
ERROR 0271:Check date and time settings.
WARNING 0251:System CMOS checksum bad - Default
configuration used.
Press <F1> to resume, <F2> to Setup
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.
If you still see error message after above action, please get contact with
TOSHIBA service.