Backup Battery; Rtc Battery - Toshiba T200 User Manual

1.9.3

Backup Battery

The backup battery maintains data for AutoResume. The power source used to back up
AutoResume data is determined according to the following priority:
AC adapter > Main battery > Backup battery
The backup battery is charged by the main battery or AC adapter when the system is powered
on. Table 1-11 shows the charging time and data preservation period of the backup battery.
Table 1-11 Backup Battery Charging/Data Preservation Time
Charging Time
Data preservation period (full charge)
1.9.4

RTC Battery

The RTC battery provides power to keep the current date, time, and other setup information
in memory while the computer is turned off. Table 1-12 shows the charging time and data
preservation period of the RTC battery.
Table 1-12 RTC Battery Charging/Data Preservation Time
Charging Time
Data preservation period (full charge)
T200/T200CS
Power On
Power Off
(with AC Adapter or main battery)
Power Off
(Without AC Adapter and main battery)
Power On
Power Off
Time
10 H
10 H
Doesn't charge
8 H
Time
48 H
Doesn't charge
1 month
1-19