Table 1-12 Backup Battery Charging/Data Preservation Time
Charging Time Power On
Data preservation period (full charge)
1.10.4
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 1-13 shows the charging time and data
preservation period of the RTC battery.
Table 1-13 RTC Battery Charging/Data Preservation Time
Charging Time
Data preservation period (full charge)
1-18
Power Off (with AC Adapter)
Power Off (Without AC Adapter)
Power On
Power Off
Time
16 H
60 H
Doesn't charge
8 H
Time
48 H
Doesn't charge
1 month