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1 Hardware Overview 1.7 Batteries
1-20 PORTEGE A200 Maintenance Manual (960-499)
1.7.3 RTC Battery
The RTC battery provides the power supply to maintain the date, time, and other system
information in memory.
Table 1-11 lists the battery charging time.
Table 1-11 RTC battery charging time
AC adapter or main battery in use
about 14 hours
Table 1-12 lists the approximate maintaining time of fully charged battery after power off.
Table 1-12 Maintaining time
RTC battery About 30 days