Toshiba TECRA S1 manual Batteries Hardware Overview, RTC Battery

1.9 Batteries 1 Hardware Overview

NOTE: The time required for normal charge depends on the power consumption by the system. Using the fluorescent lamp and frequently accessing the disk consume much power and lengthen the charge time.

Any of the following cases stops battery charge:

1.The battery becomes fully charged.

2.The AC adapter or battery pack is removed.

3.The battery or AC adapter voltage is abnormal. Detection of full charge

A full charge is detected only when the battery is being charged by quick or normal charge. A full charge is detected when either of the following conditions is met:

1.The current in the battery charging circuit drops below the predetermined value.

2.The charging time exceeds the fixed limit.

1.9.3RTC Battery

The RTC battery provides power to keep the current date, time and other system information in memory while the computer is turned off. Table 1-8 lists the charging time and data preservation period of the RTC battery.

Table 1-8 RTC battery charging/data preservation time

	Status	Time
Charging	AC Adapter or main battery pack used	50 hours
time	(power on)

TECRA S1 Maintenance Manual 1-19