Toshiba SATELLITE E105 1.6 Batteries

5B1.6 Batteries 1 Hardware Overview
Satellite E100/E105 Maintenance Manual 17
1.6 Batteries
The computer has the following three 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 8 Cell Lithium Ion 10.8 V 5200 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 775C. When the AC adapter and
battery pack are attached to the computer, the 775C 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.