Toshiba PQF46X Manual Do Utilizador

Página de 278
1 Hardware Overview 
1.7 Power Supply 
1.8 Batteries 
The computer has the following two types of batteries: 
‰  Main Battery Pack 
‰  Real Time Clock (RTC) Battery 
Table 1-5 lists the specifications of these batteries. 
Table 1-5  Battery Specifications 
Battery Type 
Material 
Output voltage 
Capacity 
Main Battery Pack 
6 Cell 
Lithium Ion 
10.8 V 
4000 mAh 
RTC Battery 
Lithium Ion 
3.0 V 
14 mAh 
 
1.1.1 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. 
 
1.1.2 
Battery Charging Control 
Battery charging is controlled by WINBOND 8769L.  When the AC adapter and battery 
pack are attached to the computer, the 8769L 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. 
 
 
 
Qosmio F40/F45   Maintenance Manual 
28