Power and Power-Up Modes
Portégé A100
6-4
Portégé A100
Version
2
Last Saved on 28.11.2003 13:12
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Battery types
The computer has two types of batteries:
■
Main Battery pack
■
Real Time Clock (RTC) battery
Main battery
When the AC adaptor is not connected, the computer’s main power
source is a removable lithium ion Battery pack, also referred to in this
manual as the main battery. You can purchase additional Battery packs
for extended use of the computer away from an AC power source.
Before you remove the Battery pack, set the computer to Hibernation
mode or save your data and shut down the computer. Do not change the
Battery pack while the AC adaptor is connected.
1. 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.
2. 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 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.
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
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
Main Battery
indicator 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:
**** RTC battery is low or CMOS checksum is inconsistent ****
Press [F1] key to set Date/Time.