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1 Hardware Overview 1.13 Batteries
1.13.2 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 1-14 shows the time required for charges of main battery.
Table 1-14 Time required for charges of main battery
Condition Charging Time
3,600mAh About 3.5 to 9 hours or longer Normal charge
4,400mAh About 4 to 12 hours or longer
3,600mAh About 2.6 hours Quick charge
4,400mAh About 2.6 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
Data preservation time
When turning off the power in being charged fully, the preservation time is as
follows:
Table 1-15 Data preservation time
Condition Preservation time
3,600mAh About 3 days Standby Mode
4,400mAh About 3.6 days
3,600mAh About 25 days Boot Mode
4,400mAh About 30 days
1-28 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)