Toshiba A3X Batteries Hardware Overview, Battery Charging Control, Battery preservation time

1.12 Batteries 1 Hardware Overview

1.12.2 Battery Charging Control

Battery charging is controlled by a power supply microprocessor. The power supply microprocessor controls power supply and detects a full charge when the AC adaptor and battery are connected to the computer.

‰Battery Charge

When the AC adapter is connected, normal charging is used while the system is turned on, and quick charge is used while the system is turned off or in suspend mode. Table 1-16 shows the time required for charges of main battery.

Table 1-16 Time required for charges of main battery

Condition		Charging Time
Normal charge	4,400mAh	About 4.5 to 12.0 hours or longer
	8,800mAh	About 7.0 to 21.0 hours or longer
Quick charge	4,400mAh	About 3.0 hours
	8,800mAh	About 4.5 hours

Charge is stopped in the following cases.

1.The main battery is fully charged

2.The main battery is removed

3.Main battery or AC adapter voltage is abnormal

4.Charging current is abnormal

‰Battery preservation time

When turning off the power in being charged fully, the preservation time is as follows:

Table 1-17 Battery preservation time

Condition		Preservation Time
Power OFF	4,400mAh	About 85 days
or
	8,800mAh	About 160 days
Hibernation
Stanby	4,400mAh	About 5 days
	8,800mAh	About 8 days

Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-31