Toshiba protege pt311u05702v Manuel D’Utilisation

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To ensure that the battery maintains its maximum capacity, 
operate the computer on battery power at least once a month. The 
Lithium-Ion battery has no memory effect so it is not necessary to 
let the battery fully discharge each time. However, for better 
accuracy of the battery meter, it is helpful to fully discharge the 
battery periodically. Please see 

 for procedures. If the computer is continuously operated 

on AC power, either through an AC adaptor or a port replicator (if 
applicable to your system), for an extended period (more than a 
month), the battery may fail to retain a charge. This may shorten the 
life of the battery, and may cause the battery meter to be inaccurate.

For optimum optical media 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: Depending on your system, the RTC battery may 
only charge while the computer is turned on.

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 
Customer Support Center.