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Charging The Rtc Battery - Toshiba Portege M750-S7221 User Manual

Toshiba portege m750-s7221: user guide
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The battery may not start charging immediately under the following
conditions:
The battery is extremely hot or cold.
To ensure that the battery charges to its full capacity, wait until
it reaches room temperature (50 to 80 degrees Fahrenheit, 10 to
26 degrees Celsius).
The battery is almost completely discharged.
Leave the power connected and the battery should begin
charging after a few minutes.

Charging the RTC battery

Your computer has an internal real-time clock (RTC) battery. The
RTC battery powers the System Time Clock and BIOS memory
used to store your computer's configuration settings. When fully
charged, it maintains this information for up to a month when the
computer is powered off.
The RTC battery may have become completely discharged while
your computer was shipped, resulting in a CMOS error message
during startup. The error message may vary by computer model.
NOTE
To recharge the RTC battery, plug the computer into a live electrical
outlet and leave the computer powered on for 24 hours.
NOTE
HINT: Once the battery is fully charged, we recommend that you
operate your computer on battery power until the battery discharges
completely. Doing this extends battery life and helps ensure accurate
monitoring of battery capacity.
Depending on your system, the RTC battery may only charge while
the computer is turned on.
It is seldom necessary to charge the RTC battery because it charges
while the computer is on. If the RTC battery is low, the real-time
clock and calendar may display the incorrect time and date or stop
working.
When Hibernation mode is enabled and the RTC battery is
completely discharged, a warning prompts you to reset the real-time
clock.
Mobile Computing
Charging batteries
113

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