Power
Hardware and Software Guide 2–19
Charging Battery Packs
A battery pack inserted in the notebook charges whenever the
notebook is connected to external power through the AC adapter
or through an optional docking device.
A battery pack inserted in the notebook charges whether the
notebook is off or in use, but the battery pack charges faster while
the notebook is off. Charging may be delayed if a battery pack is
new, has been unused for 2 weeks or more, or is much warmer or
cooler than room temperature.
The battery light displays charging status and, in some
circumstances, power availability:
■ On: the battery pack is charging.
■ Off: the battery pack is fully charged or not installed.
■ Blinking: The charge in the battery pack is too low to start the
notebook. For example, the battery light blinks if you try to
turn on the notebook while the only power source is a nearly
discharged battery pack.
To prolong battery life and optimize the accuracy of battery
charge displays, follow the instructions in “Charging a New
Battery Pack” and “Charging an In-Use Battery Pack,” next in
this chapter.
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