Toshiba A9 用户指南

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页码 243
104
Mobile Computing
Running the computer on battery power
For optimum DVD performance, it is recommended that you play 
DVDs while running the computer on AC power. For more 
information about Windows
®
 power plans, see 
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 
second 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 
NOTE