High Capacity Battery Pack (Option); Real Time Clock (Rtc) Battery - Toshiba Portege M300 User Manual

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.

High capacity battery pack (option)

An optional High capacity battery pack is installable instead of a main
battery pack. The connection method of High capacity battery pack is the
same as that of main battery pack.
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.
When the computer is powered off in Standby mode, and the AC
adaptor is not connected, the main 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.
Do not have only High capacity battery pack, when having connected
High capacity battery pack with the computer.

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.
User's Manual
Extending battery life
**** RTC battery is low or CMOS checksum is
inconsistent ****
Press [F1] key to set Date/Time.
for the detail.
Power and Power-Up Modes
in this chapter for
6-5