Real time clock battery – Toshiba Qosmio X300 User Manual
Page 123
User’s Manual
6-4
Power
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 - please refer to
in this chapter for
details of the procedure.
If the computer is continuously operated on AC power through connection
to an AC adaptor for an extended period, for example more than a month,
the battery may fail to retain a charge, it may not function efficiently over its
expected life and the Battery indicator may not properly indicate a low-
battery condition.
Real Time Clock 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:
■
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.
■
Always use the battery pack supplied as an accessory or an equivalent
battery pack specified in the User's Manual. Other battery packs have
different voltage and terminal polarities. Use of non-conforming battery
packs could generate smoke or cause fire or rupture, possibly resulting
in serious injury.
■
Always dispose of used battery packs in compliance with all applicable
laws and regulations. Put insulating tape, such as cellophane tape, on
the electrode during transportation to avoid a possible short circuit, fire
or electric shock. Failure to do so could possibly result in serious injury.
■
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.
S
ERROR 0271: Check date and time
settings.
WARNING 0251: System CMOS checksum bad -
Default configuration used.
Press <F1> to resume, <F2> to Setup.