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1 Hardware Overview
1-34 [CONFIDENTIAL] PORTÉGÉ R700 Series Maintenance Manual (960-833)
Data preservation time
When turning off the power in being charged fully, the preservation time is as
following Table 1-11.
Table 1-11 Data preservation time
Condition preservation time
Standby About 5 days Battery(66Wh, 6 cell)
Shutdown About 125 days Battery(66Wh, 6 cell)
Standby About 8 days (93Wh, 9 cell)
Shutdown About 185 days(93Wh, 9 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 1-12 RTC battery charging/data preservation time
Status Time
Charging Time (power on) 24 hours
Data preservation period (full charge) 30 days