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Mobile Computing
Running the computer on battery power
Battery Notice
Battery life rating is for comparison purposes only, and does not
indicate the battery life that will be obtained by any individual user.
Actual battery life may vary considerably from specifications
depending on product model, configuration, applications, power
management settings and features utilized, as well as the natural
performance variations produced by the design of individual
components. The battery life rating is only achieved on the select
models and configurations tested by Toshiba under the specific test
settings at the time of publication and is not an estimate of a
system’s battery life under any conditions other than the specific
test settings.
Recharge time varies depending on usage. Battery may not charge
while the computer is consuming full power. After a period of time,
the battery will lose its ability to perform at maximum capacity and
will need to be replaced. This is normal for all batteries.
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 “Maintaining your battery” on
page 80 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 best performance when playing streaming media (especially
streaming video), either power the computer from its AC adaptor, or
set up a power plan that keeps the computer running at full
performance even when powered from its battery. For more
information about Windows
®
power plans, see “Power Plans” on
page 77.
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.
NOTE