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
Item Time
Charging
time AC adapter or main battery in use
(Power ON) about 14 hours
Table 1-12 lists the approximate maintaining time of fully charged battery after power off.
Table 1-12 Maintaining time
Maintaining Time
RTC battery About 30 days