Toshiba PRO L300D User Manual

Page of 187
User’s Manual
6-4
Power and Power-up Modes
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 
 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 follow-
ing messages appears when you turn on the power:
The firmware has detected that a CMOS 
battery fail occurred.<F1> contiune
     The firmware has detected that a CMOS 
     battery fail occurred.<F1> contiune, 
     <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> contiune
   The firmware has detected that a CMOS battery
   fail occurred.<F1> contiune, <F2> to setup
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