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6-4 User’s Manual
L630/L635
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. One of the
following messages appears when you turn on the power:
The firmware has detected that a CMOS
battery fail occurred. <F1> continue
The firmware has detected that a CMOS
battery fail occurred. <F1> continue,
<F2> to setup
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. One of the following messages appears when you turn
on the power:
The firmware has detected that a CMOS battery fail
occurred. <F1> continue
The firmware has detected that a CMOS battery fail
occurred. <F1> continue, <F2> to setup
The computer’s RTC battery is a lithium 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