Toshiba 650CT Maintenance Manual page 16

1.9 Batteries
The computer has three types of batteries:
Main battery pack
Backup battery
RTC battery
Battery specifications are listed in Table 1-6.
Battery name
Main battery
Backup battery Nickel Metal Hydride
RTC battery Nickel Metal Hydride
1.9.1 Main Battery
The removable main battery pack is the computer's main power source when the AC adapter
is not attached. The backup and main batteries maintain the state of the computer when you
enable AutoResume.
Battery Charging Control
Battery charging is controlled by a microprocessor that is mounted on the system board. This
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 quick charge: quick charge 1
when the system is powered off, and quick charge 2 when the system is powered on.
Status
Quick charge 1
(power off)
Quick charge 2
(power on)
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Table 1-6 Battery specifications
Material Output voltage
Lithium-Ion
Table 1-7 Time required for quick charges
Charging time
4 hours
6 to 9 hours
10.8 V
7.2 V
3.6 V
Capacity
3,400 mAh
180 mAh
30 mAh
650CT