1.9 Batteries

1 Hardware Overview

1.9.2Battery Charging Control

Battery charging is controlled by a power supply microprocessor. The microprocessor controls whether the charge is on or off and detects a full charge when the AC adaptor and battery are attached to the computer. The system charges the battery.

Battery Charge

When the AC adaptor is attached, there are two types of charge: When the system is powered off and when the system is powered on. Table 1-10 lists the charging time required for charges.

Table 1-10 Time required for charges

Battery type

Power on (hours)

Power off (hours)

 

 

 

Battery(4,000 mAh)

About 3.0 to 9.5

About 2.5

 

 

 

Battery(5,100 mAh)

About 4.0to 12.0

About 3.0

 

 

 

Extended Capacity battery (7,050 mAh)

About 5.0 to 19.5

About 3.5

 

 

 

High capacity battery(7,200 mAh)

About 6.0 to 21.0

About 4.0

 

 

 

NOTE: The time required when the system is powered on is affected by the amount of power the system is consuming. Use of the fluorescent lamp and frequent disk access diverts power and lengthens the charge time.

If any of the following occurs, the battery charge process stops.

1.The battery becomes fully charged.

2.The AC adaptor or battery is removed.

3.The battery or output voltage is abnormal.

TECRA M10 Maintenance Manual (960-685)

[CONFIDENTIAL]

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Toshiba M10, TECRA manual Batteries Hardware Overview, Battery Charging Control, Time required for charges