1-16
100CS
1.8.3
Backup Battery
The backup battery maintains data for AutoResume. The power source used to back up the
AutoResume data is determined according to the following priority:
AC power > Main battery > Backup battery
The backup battery is charged by the main battery or AC power cord. Table 1-8 shows the
charging time and data preservation period of the backup battery.
Table 1-8 Backup battery charging/data preservation time
Item
Time
Charging Time
Power On
20 H
Power Off (with AC power)
20 H
Power Off (without AC power)
Doesn’t charge
Data preservation period (full charge)
5 H
1.8.4
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 1-9 shows the charging time and data
preservation period of the RTC battery.
Table 1-9 RTC battery charging/data preservation time
Item
Time
Charging Time
With AC power
48 H
or main battery
Data preservation period (full charge)
1 month
