1 Hardware Overview
1-34 TECRA M11/Satellite Pro S500M Series Maintenance Manual (960-813) [CONFIDENTIAL]
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 3 days Battery(48Wh, 6 cell)
Shutdown About 35 days Battery(48Wh, 6 cell)
Standby About 3 days 55Wh, 6 cell)
Shutdown About 40 days(55Wh, 6 cell)
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 1-12 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) 24 hours
Data preservation period (full charge) 30 days
