Toshiba Satellite R10 Maintenance Manual page 47

1.7 Batteries
1.7.3 RTC Battery
The RTC battery provides the power supply to maintain the date, time, and other system
information in memory. Table 1-17 lists the battery charging time and data preservation
times.
Table 1-17 RTC battery charging/data preservation time
Charging AC adapter or main battery in use
time
(Power ON)
Data preservation time (when fully charged)
Satellite R10 Maintenance Manual (960-509)
1 Hardware Overview
Time
about 8 hours
about 30 days
1-31