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1 Hardware Overview 1.9 Batteries
1-30 [CONFIDENTIAL] TECRA M10 Maintenance Manual (960-685)
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 3 days Battery(4,000 mAh)
Shutdown About 40 days Battery(4,000 mAh)
Standby About 4 days (5,100 mAh)
Shutdown About 55 days(5,100 mAh)
Standby About 5 days
Extended Capacity battery (7,050 mAh)
Shutdown About 75 days
Extended Capacity battery (7,050 mAh)
Standby About 6 days
High capacity battery(7,200 mAh)
Shutdown About 95 days
High capacity battery(7,200 mAh)
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