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User's Manual
POWER AND
POWER-UP MODES
Procedures
To recharge a battery pack while it is installed in the computer, connect the AC
adaptor to the DC IN socket and plug the other end into a working outlet.
The Battery indicator glows orange when the battery is being charged.
CAUTION: Use only the computer connected to an AC power source or
the optional TOSHIBA Battery charger to charge the battery pack. Do
not attempt to charge the battery pack with any other charger.
Time
The following table shows the approximate time required to fully charge a dis-
charged battery.
Charging time (hours)
Battery type Power on Power off
Main battery pack 11.3 or longer 2.5
Secondary battery pack 9.7 or longer 2.5
RTC battery 8 Doesn’t charge
Battery charging notice
The battery may not charge right away under the following conditions:
◆ The battery is extremely hot or cold. If the battery is extremely hot, it might not
charge at all. Also, to ensure the battery charges to its full capacity, charge the
battery at room temperature of 10° to 30°C (50° to 88°F).
◆ The battery is nearly completely discharged. Leave the AC adaptor connected
for a few minutes and the battery should begin charging.
The Battery indicator may show a rapid decrease in battery operating time when
you try to charge a battery under the following conditions:
◆ The battery has not been used for a long time.
◆ The battery has completely discharged and been left in the computer for a long
time.
◆ A cool battery is installed in a warm computer.
In such case, follow the steps below.
1. Fully discharge the battery by leaving it in the computer with the power on
until the power automatically shuts off.