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The battery charges whether the computer is off or in use, but it charges faster when the computer is
off.
Charging may take longer if a battery is new, has been unused for 2 weeks or more, or is much
warmer or cooler than room temperature.
To prolong battery life and optimize the accuracy of battery charge displays, follow these
recommendations:
●
If you are charging a new battery, charge it fully before turning on the computer.
●
Charge the battery until the battery light turns off.
NOTE:
If the computer is on while the battery is charging, the Power Meter in the notification
area may show 100 percent charge before the battery is fully charged.
●
Allow the battery to discharge below 5 percent of a full charge through normal use before
charging it.
●
If the battery has been unused for one month or more, calibrate the battery instead of simply
charging it.
The battery light displays charge status:
●
Amber: The battery is charging.
●
White: The battery is close to full charge capacity.
●
Blinking amber: The battery is not charging and has reached a low or critical battery level.
●
Off: If the computer is plugged into an external power source, the light turns off when the battery
is fully charged. If the computer is not plugged into an external power source, the light stays off
until the battery reaches a low battery level.
Managing low battery levels
The information in this section describes the alerts and system responses set at the factory. Some
low-battery alerts and system responses can be changed in Power Options. Preferences set by using
Power Options do not affect lights.
Identifying low battery levels
When a battery that is the sole power source for the computer reaches a low battery level, the battery
light blinks.
If a low battery level is not resolved, the computer enters a critical battery level, and the battery light
begins blinking rapidly. If the computer is on or in the Sleep state, the computer remains briefly in the
Sleep state, and then shuts down and loses any unsaved information.
Resolving a low battery level
CAUTION:
To reduce the risk of losing information when the computer reaches a critical battery
level, do not restore power until the power lights turn off.
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Chapter 6 Power
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Страница 4: ...iv Safety warning notice ...
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Страница 43: ...3 Plug the other end of the power cord into an AC outlet 3 Using external AC power 33 ...