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Software Functional Overview 
necessary. 
3.6.9  AC Adapters and Power Source Objects 
The Power Source objects describe the power source used to run the system. 
 
Object 
Description 
_PSR 
Returns present power source device  
_PCL 
List of pointers to powered devices. 
 
_PSR 
Returns the current power source devices. Used for the AC adapter and is located under the 
AC adapter object in name space. Used to determine if system is running off the AC adapter. 
Arguments: 
None 
Results code0x00000000 = Off-line; 0x00000001 = On-line 
 
_PCL 
This object evaluates to a list of pointers, each pointing to a device or a bus powered by the 
power source device. Pointing a bus means that  all devices under the bus is powered by it 
power source device. 
 
3.7 
Battery Management   
This notebook supports only Li-Ion Battery Pack. There is only one battery pack activating at 
one time. The special designed Bridge Battery module can backup the system under Suspend 
To RAM mode for a short period of time. 
 
3.7.1  Battery Sub-system 
The charger will stop charge the battery when the following condition is detected. 
 
•  The temperature of the system is too high 
•  Battery reading methodology is through PMU08 SMBus 
•  Battery Life is around 2.5 to 3 Hours.(T.B.D) 
 
Note that the battery life depends on different configuration running. (e.g. the 
battery life is shorter with CDROM running, the battery life is longer with 
document keyin only; battery life is short while PMU disabled, battery life is 
longer while PMU enabled.)  
 
3.7.2  Battery Low Warning 
When the battery capacity remains 8%, the PMU08 will generate a battery warning SMI. The 
system will do the following action. 
 
−  The Power LED Indicator will continually blinking with 1 Hz.  
−  The system issues a warning beep (3 beeps at once)  
 
3.7.3  Battery Low 
When the battery capacity remains 3%, the system will generate a battery low SMI. The 
system will do the following action. 
 
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FIC M295 / M296 Service Manual