Toshiba Satellite A300 series Maintenance Manual page 70

1.8.2 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.
θ 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. Refer to the
following Table 1-8.
Table 1-8 Time required for charges of main battery
Power On Charge
Power Off Charge
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
θ Data preservation time
When turning off the power in being charged fully, the preservation time is as
following Table 1-9.
Condition
Standby
Hibernation
Battery 3 cell
Pack
6 cell
9 cell
Approximately 1 month(shutdown mode,All type of battery pack
Satellite A300 Maintenance Manual (960-Q02)
Condition
Table 1-9 Data preservation time
Approximately 1.5 days(sleep mode)
Approximately 3 days(sleep mode)
Approximately 5 days(sleep mode)
Chapter 1 Hardware Overview
Charging Time
About 12 hours-
About 4 hours
preservation time
About 3 days
About 1 month
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