Real Time Clock (Rtc) Battery - Toshiba Libretto U100 User Manual

Power and Power-Up Modes
■
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 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 Standby
mode. Data is stored in RAM, so if the computer loses power it will be
lost. When the computer is powered off in Standby mode, and the AC
adaptor is not connected, the battery pack supply power to maintain
data and program in memory. If the battery pack is completely
discharged, Standby mode does not function and the computer loses
all data in memory.
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
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.

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
You can change the setting of RTC by pressing F1 key. Refer to Chapter 9
Troubleshooting
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.
6-4
Extending battery life
**** RTC battery is low or CMOS checksum is
inconsistent ****
Press [F1] key to set Date/Time.
for the detail.
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User's Manual