1 Hardware Overview

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1.5Batteries

The computer has the following two types of batteries:

Main Battery Pack

Real Time Clock (RTC) Battery

1.5.1Main 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.

3-cell LI-ION / 6-cell LI-ION

Inserted from bottom side

Charging time 12 hrs max.(System on)/ 4 hrs max. (System off)

One hour quick charge to 60%~70%

1.5.2Battery Charging Control

Battery charging is controlled by EC KB926. When the AC adapter and battery pack are attached to the computer, the EC KB926 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 1-3

Quick/Normal Charging Time

 

 

 

 

State

 

Charge Time

 

 

 

 

Off-State Charge

3/6 Cell

 

About 4 hours max

 

 

 

 

On-State Charge

3/6 Cell

 

About 12 hours max

 

 

 

 

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

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Image 31
Toshiba PROL450D manual Batteries, Main Battery, Battery Charging Control, Quick/Normal Charging Time