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Mobile Computing

Running the computer on battery power

The computer also has an internal real-time-clock (RTC) battery.
The RTC battery powers the RTC memory that stores your system
configuration settings and the current time and date information. It
maintains this information for up to a month while the computer is
turned off.
TECHNICAL NOTE: The RTC battery does not charge while the
computer is turned off, even when AC power is attached.
The RTC battery charges only while the computer is powered on.
Power management
Your computer ships with the power management options preset to
a configuration that will provide the most stable operating
environment and optimum system performance for both AC power
and battery modes.
Changes to these settings may result in system performance or
stability issues. Users who are not completely familiar with the power
management component of the system should use the preset
configuration. For assistance with setup changes, contact Toshiba’s
Global Support Centre.
Using additional batteries
In addition to the main battery, you may also have an optional
secondary battery (not included with your computer). If you travel
and need to work for many hours without an AC power source, you
may purchase a battery module for use in the computer, or carry
additional charged battery packs with you. You can then replace a
discharged battery and continue working.
For more information on batteries and accessories, see
accessories.toshiba.com.