3–18
Hardware and Software Guide
Power
Battery Pack
Charging a Battery Pack
To prolong battery life and optimize the accuracy of battery
charge displays:
Å
WARNING:
Do
not
charge the notebook battery pack onboard
aircraft. Charging the battery pack may damage aircraft electronic
systems.
■
If you are charging a
new
battery pack:
❏
Charge the battery pack while the notebook is connected
to external power through the AC adapter.
❏
When you charge the battery pack, charge it fully.
■
If you are charging an
in-use
battery pack:
❏
Allow the battery pack to discharge to about 10 percent of
a full charge through normal use before charging it.
❏
When you charge the battery pack, charge it fully.
A battery pack inserted in the notebook charges whenever the
notebook is connected to external power through an AC adapter,
an optional docking device, or an optional combination power
adapter.
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.