File No. 960-140
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1.8.3 Battery Charging Control
Battery charging is controlled by a power supply microprocessor that is mounted on the
system board. The microprocessor controls whether the charge is on or off and detects a
full charge when the Universal AC Adapter and battery are connected to the computer.
The system charges the battery using quick charge or trickle charge.
Quick Battery Charge
The battery quick charges when the Universal AC Adapter is connected and the
system is powered off or in suspend mode.
Table 1-7 Time required for quick charges
Status
Charging time
Quick charge 1(power off)
2 to 3 hours
Quick charge 2(power on)
5 to 6 hours
If any of the following occurs, the Main Battery quick charge process stops.
1. The Main Battery becomes fully charged.
2. The AC adapter or Main Battery is removed.
3. The Main Battery or output voltage is abnormal.
Trickle Battery Charge
When the main battery is fully charged and the AC adapter is attached, the
microprocessor automatically changes quick charge 1 or 2 to trickle charge.
1.8.4 RTC Battery
The RTC battery provides power to keep the current date, time and other setup
information in memory while the computer is turned off. Table 1-8 lists the charging time
and data preservation period of the RTC battery.
Table 1-8 RTC battery charging/data preservation time
Status
Time
Charging Time
48 hours
Data preservation period (full charge)
1 month
Содержание Libretto 100CT
Страница 8: ...File No 960 140 Chapter 1 Hardware Overview ...
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Страница 30: ...File No 960 140 Chapter 2 Troubleshooting Procedures ...
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Страница 148: ...File No 960 140 Chapter 4 Replacement Procedures ...
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Страница 161: ...File No 960 140 4 10 3 Seat the HDD cover and fasten it with two M2x14 silver screws ...
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Страница 191: ...File No 960 140 Appendices ...
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Страница 204: ...File No 960 140 B 2 B 2 System Board Back View Figure B 2 Board layout back H I J K L M N O P Q R S T A B C D E F G ...
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