1 Hardware Overview
1.10.3
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 1-9 lists the charging time and data
preservation period of the RTC battery.
Table 1-9 RTC battery charging/data preservation time
Charging Time (power on)
Data preservation period (full charge)
1-24
Status
[CONFIDENTIAL]
Time
24 hours
30 days
PORTEGE R500 Maintenance Manual (960-634)
1.10 Batteries