Toshiba TECRA S1 Manual Do Utilizador
1 Hardware Overview
1.9 Batteries
1-18
TECRA S1 Maintenance Manual
1.9 Batteries
The computer has the following three types of batteries:
Main battery pack
Real time clock (RTC) battery
Secondary battery pack (Optionally installed in the selectable bay)
Table 1-6 lists the specifications of these batteries.
Table 1-6 Battery specifications
Battery name
Material
Output voltage
Capacity
Main battery pack
Lithium Ion
10.8 V
6,450 mAh
RTC battery
Lithium Ion
3.0 V
15 mAh
Secondary battery pack
Lithium Ion
10.8V
4,300 mAh
1.9.1 Main
Battery
The main battery pack serves as the computer's main power source when the AC adapter is
not attached. The main battery maintains the state of the computer so that it can resume it.
not attached. The main battery maintains the state of the computer so that it can resume it.
1.9.2
Battery Charging Control
Battery charging is controlled by LPC 47N253. When the AC adapter and battery pack are
attached to the computer, the LPC 47N253 controls the charge on/off state and detects a full
charge.
attached to the computer, the LPC 47N253 controls the charge on/off state and detects a full
charge.
Battery Charge
When the AC adapter is attached, the battery is charged by off-state charge when the
system is powered off or by on-state charge when it is powered on.
system is powered off or by on-state charge when it is powered on.
Table 1-7 Quick/normal charging time
Charge
time
Off-state charge
About 3 hours
On-state charge
About 4 - 9 hours