2.1 Batteries

1 Hardware Overview

2.1 Batteries

The computer has the following three types of batteries:

?Main battery pack

?Real time clock (RTC) battery

Table 1-5 lists the specifications of these batteries.

Table 1- 8 Battery specifications

Battery name

 

Material

Output voltage

Capacity

 

 

 

 

 

Main battery pack

8 Cell

Lithium Ion

14.8 V

4300 mAh

 

 

 

 

 

RTC battery

 

Lithium Ion

3.0 V

7 mAh

 

 

 

 

 

1.1.1Main 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.

1.1.2Battery Charging Control

Battery charging is controlled by LPC 47N249. When the AC adapter and battery pack are attached to the computer, the LPC 47N249 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.

Table 1- 9 Quick/normal charging time

State

 

Charge time

 

 

 

Off-state charge

8 Cell

About 4 hours

 

 

 

On-state charge

8 Cell

About 8 hours or longer

 

 

 

Equium A60/Satellite A60/ Pro A60/A65 Maintenance Manual

1-22

Page 36
Image 36
Toshiba A65, PRO A60, SATELLITE A60 manual Batteries Hardware Overview, Main Battery, Battery Charging Control