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Battery Pack 

The battery pack is the internal power source for the computer. It is 
rechargeable using the AC adapter. 

The operating time of a fully charged battery pack depends on how you 
are using the computer. When your applications often access peripherals, 
you will experience a shorter operating time. 

NOTE: Care and maintenance information for the battery is provided in the “Battery 

Pack Guidelines” section in Chapter 7. 

Charging the Battery Pack 

 

Charging will not start if the battery’s temperature is below 0 

°C (32 °F) or above 50 

°C (122 °F). 

 

The charging process will stop and the Battery Charge Indicator flashes amber 
when the battery’s temperature gets above 60 

°C (140 °F). If this happens, the 

battery pack may be damaged. Please contact your dealer. 

 

During charging, do not disconnect the AC adapter before the battery has been fully 

charged; otherwise you will get a prematurely charged battery. 

 

To charge the battery pack, connect the AC adapter to the computer and 
an electrical outlet. The Battery Charge Indicator ( 

 ) on the computer 

glows amber to indicate that charging is in progress. You are advised to 
keep the computer power off while the battery is being charged. When the 
battery is fully charged, the Battery Charge Indicator glows green. 

It takes approximately 197 minutes to charge the battery pack to 80% 
capacity and four or more hours to fully charge the battery pack when the 
computer is off. 

CAUTION: After the computer has been fully recharged, do not immediately disconnect 

and reconnect the AC adapter to charge it again. Doing so may damage the battery. 

 

NOTE: The battery level may automatically lessen due to the self-discharge process 

(0.21% per day), even when the battery pack is fully charged (100%). This happens no 

matter if the battery pack is installed in the computer.