Chatper 1 Hardware Overview
34 Satellite L20 Maintenance Manual (960-Q01 )
1.8.3 RTC Battery
The RTC battery provides the power supply to maintain the date, time, and other system
information in memory.
Table 1-13 lists the Time required for charges of RTC battery and data preservation time.
Table 1-13 Time required for charges of RTC battery
Condition Time
Power ON (Lights Power LED) About 24 hours
Data preservation tome (Full-charged) About a month