Toshiba portege 610ct 620ct Servicehandbuch
620 Maintenance Manual Addendum
1-15
1.8.2
1.8.2
1.8.2
1.8.2
1.8.2
Battery Charging Control
Battery Charging Control
Battery Charging Control
Battery Charging Control
Battery Charging Control
Battery charging is controlled by a power supply microprocessor that is mounted on the
power supply. The microprocessor controls whether the charge is on or off and detects a full
charge when the AC adapter and battery are attached to the computer. The system charges
the battery using quick charge or trickle charge.
power supply. The microprocessor controls whether the charge is on or off and detects a full
charge when the AC adapter and battery are attached to the computer. The system charges
the battery using quick charge or trickle charge.
❑ Quick Battery Charge
When the AC adapter is attached, there are two types of charge: quick charge when
the system is powered off and trickle charge when the system is powered on.
the system is powered off and trickle charge when the system is powered on.
Table 1-7 Time required for quick charges
Charging time
Quick charge
About 4 hours
(power off)
Trickle charge
About 5 to 8 hours
(power on)
If one of the following occurs, the battery quick-charge process stops.
1.
The battery becomes fully charged.
2.
The AC adapter or battery is removed.
3.
The battery or AC adapter output voltage is abnormal.
4.
The charge current is abnormal.
❑ Trickle Battery Charge
When the main battery is fully charged and the AC adapter is attached, the power
supply microprocessor automatically changes quick charge to trickle charge.
supply microprocessor automatically changes quick charge to trickle charge.