Toshiba Tecra 700CS Maintenance Manual page 19

1.9.2 Backup Battery
The backup battery maintains data for AutoResume. The power source used to back up the
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. Table 1-10 lists the charg-
ing time and data preservation period of the backup battery.
Table 1-10 Backup battery charging/data preservation time
Status
Charging Time
Data preservation period (full charge)
1.9.3 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 1-11 lists the charging time and data
preservation period of the RTC battery.
Table 1-11 RTC battery charging/data preservation time
Charging Time (Power On)
Data preservation period (full charge)
700 Series
7 Hours with AC adapter
14 Hours without AC adapter
2 Hours
Status
Time
Time
40 Hours
1 month
1-19