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Mobile Computing
Running the computer on battery power
Running the computer on battery power
Your computer contains a removable, rechargeable lithium ion
(Li-ion) 3,000 mAh main battery that provides power when you
are away from an AC outlet. You can recharge the main battery
many times.
In addition to the removable lithium ion main battery, the
computer has an internal real-time clock (RTC) battery. This is a
nickel metal hydride (NiMH) battery. The RTC battery powers the
RTC memory, which stores your system configuration settings
and the current time and date for up to a month while the computer
is turned off.
To increase the length of time you can run the computer on battery
power, you can connect a second battery to the optional high-
capacity battery connector on the base of the computer. The
optional high-capacity battery will provide enough additional
power for up to a total of eight hours of use.
Maximizing battery life
A battery can be recharged many times. Gradually over time it
will lose its ability to hold a charge. To maximize the life of your
main battery:
❖
Avoid leaving the computer plugged in and unused for more
than a few hours. Overcharging the main battery may shorten
its life.
❖
If you are not going to use the computer for a long period of
time, remove the main battery and the optional high-capacity
battery.
❖
Alternate between main battery packs if you have a spare.
❖
Make sure your computer is turned off, or in Hibernation
mode, when you are replacing the main battery.
❖
Store spare battery packs in a cool dry place out of direct
sunlight.
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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Page 252: ...252 Power Cable Connectors Blank Page ...
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