User's Manual
• The 
Power Saver
 utility allows you to specify a period of inactivity before the computer enters standby or 
hibernate mode. 
Battery Tips 
Tip 1. Avoid excessive heat and cold 
z
Your battery will last longer during the day if it is used, charged and stored between 50°F and 86°F (10°C and 
30°C) 
z
Charge the battery nightly where the temperature will remain around 68°F (20°C). Your battery may not last 
as long through the day if you charge it at higher or lower temperatures 
z
Allow unrestricted airflow while the computer is connected to external power. Make sure that the fan inlet and 
outlet are unobstructed 
z
 Avoid exposure to extreme temperatures for long periods, which can shorten battery charge life and 
potentially damage the battery. 
How your battery behaves in warm conditions 
z
To prevent possible damage to the battery, the system may not allow a charge if the battery temperature is 
above 122°F (50°C), such as in a closed, unattended vehicle during the summer. In this case, the Battery 
Power Indicator   may indicate that the computer has stopped charging your battery; however, your battery 
may not be fully charged. 
z
If possible, turn off or suspend your computer while the battery is charging in a warm environment to avoid 
over-heating 
z
In warmer temperatures, your battery may take much longer to fully charge. 
How your battery behaves in cold conditions 
z
When using a battery in cold conditions, the battery capacity may drain significantly faster 
z
To prevent possible damage to the battery, the system will not allow a charge if the battery temperature is 
below 41°F (5°C), such as in a closed, unattended vehicle during the winter. In this case, the Battery Power 
Indicator   may indicate that the computer has stopped charging your battery; however, your battery may 
not be fully charged 
z
In cooler temperatures, your battery can take much longer to fully charge. 
Tip 2. Prevent wasted power 
z
Manually turn off or suspend your computer whenever you are not using it 
z
Reduce the screen brightness. Decrease brightness by pushing  . Increase it by pushing   
z
Enable the display's automatic dimming feature 
z
Use the AC adapter or vehicle adapter whenever possible 
z
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