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Mobile Computing
Charging batteries
Charging the main battery
To charge the main battery while it is in your computer, use the
AC adapter to connect the computer to a live wall outlet. With the
computer off, recharging the main battery takes up to three hours.
The main battery takes much longer to charge when the computer
is on. The main battery does not charge while the computer is
consuming full power.
The main battery light:
❖
Glows amber while the main battery is being charged.
❖
Glows green when the main battery is fully charged.
The main battery may not start charging immediately if:
❖
The main battery is extremely hot or cold. To ensure that the
main battery charges to its full capacity, wait until it reaches
room temperature (50 to 80 degrees Fahrenheit, 10 to 26
degrees Celsius).
❖
The main battery is almost completely discharged. Leave the
power connected and the main battery should begin charging
after a few minutes.
HINT: Once the main battery is fully charged, we recommend
you operate your computer on battery power until the main
battery discharges completely. Doing this extends the life of
the main battery and helps ensure accurate monitoring of
battery capacity.
Charging the RTC battery
The RTC battery provides power for the internal real-time clock
and calendar. During normal use, the main battery keeps the RTC
battery adequately charged. Occasionally, the RTC battery may
Summary of Contents for 3490CT - Portege - PIII 700 MHz
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Page 192: ...192 Toshiba Utilities Using a supervisor password Blank Page ...
Page 232: ...232 If Something Goes Wrong Toshiba s worldwide offices Blank Page ...
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