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6-5
Care and use of the battery pack
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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:
Check system. Then press [F1] key . . . . . .
CAUTION: 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.
Care and use of the battery pack
The battery pack is a vital component of portable computing. Taking proper care
of it will help ensure longer operating time on battery power as well as a longer
life for your battery pack. Follow the instructions in this section carefully to
ensure safe operation and maximum performance.
Safety precautions
Mishandling of batteries can cause death, serious injury or property damage.
Carefully observe the following advisories:
Danger: Indicates an imminently hazardous situation, Which could result in
death or serious injury, if you do not follow instructions.
Warning: Indicates a potentially hazardous situation, Which could result in
death or serious injury, if you do not follow instructions.