Note
CAUTION
Batteries and Power Management
Using Battery Power
To respond to a low-battery warning
The notebook automatically alerts you when battery power drops to a critically low level. If you do not restore power within a short time, the system goes into hibernation.
Once the notebook enters hibernation in this way, you won’t be able to turn it on again until you restore power by doing one of the following:
??Connect the AC adapter (see "Step 2: Connect AC power" on page 19).
??Replace the battery with one that is charged (see "Step 1: Install the battery" on page 17).
If you connect the AC adapter, you can continue to work while your battery recharges.
To recharge the battery
The AC adapter is normally warm whenever plugged into an AC outlet. The notebook’s battery is normally warm while recharging. Do not recharge the notebook in a briefcase or other confined space, or its battery could overheat.
??To recharge the battery, connect the AC adapter to the notebook.
To get the longest operating time, wait until the battery’s charge is below 20% before recharging, then charge it fully (100%). You can continue working while the battery charges.
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