Real time clock battery, Real time clock battery -4 – Toshiba Computer L300 User Manual

Page 106

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6-4

User’s Manual

L300/L300D series

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, 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 LED may not

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. 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:

The firmware has detected that a CMOS

battery fail occurred.<F1> contiune

When the computer is powered off in hibernation and sleep mode, and the

AC adaptor is not connected, the battery pack supply power to maintain

data and programs in memory. If the battery pack is completely

discharged, hibernation and sleep do not function and the computer loses

all data in memory.
The following message appears when you turn on the power:

The firmware has detected that a CMOS battery
fail occurred.<F1> contiune

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

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