Toshiba Tecra S1 User Guide - Page 124

Battery Notice, Charging the batteries, Running the computer on battery power - rtc battery

Page 124 highlights

124 Mobile Computing Running the computer on battery power Battery Notice To ensure that the battery maintains its maximum capacity, operate the computer on battery power at least once a month until the battery is fully discharged. Please see "Maximizing battery life" on page 132 for procedures. If the computer is continuously operated on AC power, either through an AC adapter or a docking station (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 the battery light may not indicate a low-battery condition. In addition to the main battery, you may also have a second battery installed in the Slim SelectBay. 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's Slim SelectBay, or carry additional charged battery packs with you. 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. Charging the batteries To charge the main battery while it is in your computer, plug the computer into a live electrical outlet. The battery charges whether the computer is on or off. The main battery light ( ) glows amber while the battery is being charged, and glows green when it is fully charged. The battery may not start charging immediately under the following conditions:

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124
Mobile Computing
Running the computer on battery power
Battery Notice
To ensure that the battery maintains its maximum capacity,
operate the computer on battery power at least once a month
until the battery is fully discharged. Please see
“Maximizing
battery life” on page 132
for procedures. If the computer is
continuously operated on AC power, either through an AC
adapter or a docking station (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
the battery light may not indicate a low-battery condition.
In addition to the main battery, you may also have a second
battery installed in the Slim SelectBay. 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’s
Slim SelectBay, or carry additional charged battery packs
with you.
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.
Charging the batteries
To charge the main battery while it is in your computer, plug
the computer into a live electrical outlet. The battery charges
whether the computer is on or off.
The main battery light (
) glows amber while the battery is
being charged, and glows green when it is fully charged.
The battery may not start charging immediately under the
following conditions: