Toshiba Portege R830 - RTC Battery; Table 1-11 Data Preservation Time; Table 1-12 RTC Battery Charging;Data Preservation Time

1 Hardware Overview
1-30 [CONFIDENTIAL] PORTEGE R830 Satellite R830 Series Maintenance Manual (960-880)
 Data preservation time
When turning off the power in being charged fully, the preservation time is as
following Table 1-11.
Table 1-10 Data preservation time
Condition preservation time
Standby About 5 days Battery(66Wh, 6 cell)
Shutdown About 115 days Battery(66Wh, 6 cell)
Standby About 7 days (93Wh, 9 cell)
Shutdown About 165 days(93Wh, 9 cell)
1.9.3 RTC battery
The RTC battery provides power to keep the current date, tim
e and other setup information
in memory while the computer is turned off. Table 1-12 lists the charging time and data
preservation period of the RTC battery.
Table 1-11 RTC battery charging/data preservation time
Status Time
Charging Time (power on) 10 hours
Data preservation period (full charge) 30 days