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Battery Packs and Power Management
Reference Guide 3–5
To Respond to a Low-Battery Warning
The notebook automatically alerts you when the battery power
drops to a critically low level. The notebook first emits a
high-pitched beep or displays a warning message. Then, if you
do not restore power within a short time, the notebook goes into
Hibernation.
After the notebook enters Hibernation in this way, you will not be
able to turn it on again until you restore power by using one of the
following procedures:
■ Replace the battery pack with a charged one.
■ Plug in the AC adapter.
✎
If you plug in the AC adapter, you can continue to work while
your battery pack recharges.
To Recharge the Battery Pack
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CAUTION: The AC adapter is normally warm when plugged into an
AC outlet. The notebook is normally warm while recharging. Do not
recharge the notebook in a briefcase or other confined space, or the
battery pack could overheat.
» Plug the AC adapter into the notebook.
To get the longest operating time, wait until the battery charge
is below 50 percent before recharging, then charge it fully
(100 percent). Charging can take several hours. If you continue
working while the battery pack charges, the charging time may
increase.
The operating time for a fully charged battery pack depends on
the notebook model, power management settings, and level
of use.
319954-001.book Page 5 Thursday, February 3, 2005 3:03 PM