User's Manual

Tip 1. Avoid excessive heat and cold
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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).
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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.
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Allow unrestricted airflow while the computer is connected to external power. Make sure that the
fan inlet and outlet are unobstructed.
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Avoid exposing batteries to hot or cold temperatures for long periods.
How your battery behaves in warm conditions
How your battery behaves in cold conditions
Tip 2. Prevent wasted power
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Manually turn off or suspend your computer whenever you are not using it.
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Reduce the screen brightness. Decrease brightness by pressing FN+F6. Increase it by pressing
FN+F7.
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Use the AC adapter or vehicle adapter whenever possible.
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Select either the Portable/Laptop or Max Battery power scheme. Both of these power schemes
help to conserve battery power. Max Battery provides the most battery conservation by always
keeping the processing speed lower. However, this may affect your application performance.
Portable/Laptop automatically adjusts the processing speed as required by your applications.
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When running on battery power, make sure your system suspends automatically after a few
minutes of inactivity. PC Cards, radios, custom applications, or modified system settings may
affect this.
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Remove PC Cards and unplug peripherals when you are not using them. They may draw power
from the system even when not in use.
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Avoid operating the fax/modem, or audio and video applications when using battery power.
Operating a fax/modem, video, or audio equipment increases the computer’s power requirements.
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Don't use screen savers as they draw excessive current, especially “3D” screen savers.
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Avoid or minimize using applications that keep the CPU busy a large percentage of the time. The
following will help you determine if your system is running such applications:
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Turn off the Wireless LAN when not using it. Turning on the Wireless LAN increases the
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