Toshiba C855-S5133 User Manual

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Mobile Computing
Running the computer on battery power
The battery is almost completely discharged. 
Leave the power connected and the battery should begin 
charging after a few minutes.
HINT: Once the battery is fully charged, we recommend that you 
periodically operate your computer on battery power until the battery 
discharges completely.
Please make a complete back up of your data to external media 
before discharging the battery. For more information, see 
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.
Depending on your system, the RTC battery may only charge while 
the computer is turned on.
To recharge the RTC battery, plug the computer into a live electrical 
outlet and leave the computer powered on for 24 hours.
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.
NOTE
NOTE