Toshiba Tecra M4 - Table 1-16 RTC Battery Charging;Data Preservation Time

1 Hardware Overview 1.7 Batteries
1-34 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521)
1.7.3 RTC Battery
The RTC battery provides the power supply to maintain the date, time, and other system
information in memory. Table 1-16 lists the battery charging time and data preservation
times.
Table 1-16 RTC battery charging/data preservation time
Time
Charging
time
AC adapter or main battery in use
(Power ON)
about 8 hours
Data preservation time (when fully charged) about 30 days