Toshiba Satellite A500 - Batteries; Battery Charging Control; Main Battery; Table 1-3 Battery Specifications

5B1.6 Pow ly 1 Hardware Overview er Supp
Satellite/Satellite Pro/A500/A505/A507/dynabook Maintenance Manual 23
1.7 Batteries
The computer has the following 3 types of batteries:
 Main Battery Pack
 Real Time Clock (RTC) Battery
Table 1-3 lists the specifications of these batteries.
Table 1-3 Battery Specifications
Battery Type Material Output voltage Capacity
Main Battery Pack
6 Cell Lithium Ion 10.8 V 4000 mAh
12 Cell Lithium Ion 10.8 V 9000 mAh
RTC Battery Lithium Ion 3.0 V 14 mAh
1.7.1 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.
1.7.2 Battery Charging Control
Battery charging is controlled by WINBOND WPCE781L. When AC adapter and
battery pack are attached to the computer, the WPCE781L 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.