Toshiba TECRA A9 Series - Connecting to a power source

1.9 Batteries 1 Hardware Overview
TECRA A9(S5/P5/S200) Maintenance Manual (960-633)[CONFIDENTIAL] 1-29
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 1-9 lists the charging time and data
preservation period of the RTC battery.
Table 1-9 RTC battery charging/data preservation time
Status Time
Charging Time (power on) 24 hours
Data preservation period (full charge) 30 days