Toshiba P25-S509 Guida Utente

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Mobile Computing
Charging the battery
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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.
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.
Charging the RTC battery
The computer contains an internal battery that provides 
power for the real-time clock (RTC) and calendar.
During normal use, the main battery keeps the RTC battery 
adequately charged. Occasionally, the RTC battery may lose 
its charge completely, especially if you have had the 
computer turned off for a long time. 
If the RTC battery is low, the real-time clock and calendar 
may display the incorrect time and date, or stop working.
To recharge the RTC battery, plug in the computer and leave 
it turned off for at least 48 hours.
When Hibernate mode is enabled and the RTC battery is 
completely discharged, a warning prompts you to reset the 
real-time clock.