3–12 Hardware Guide
Battery Packs
To charge the primary battery pack:
1. Insert the battery pack into the notebook.
2. Connect the notebook to AC power. (The battery light
turns on.)
3. Leave the notebook connected to AC power until the battery
light turns off, signaling that the battery pack is fully charged.
To charge the battery pack in the travel battery:
1. Insert the battery pack into the travel battery caddy.
2. Attach the travel battery to the notebook.
3. Connect the notebook to AC power. (The battery light
turns on.)
4. Leave the notebook connected to AC power until the battery
light turns off, signaling that the battery pack is fully charged.
Monitoring the Charge of a Battery Pack
To increase the accuracy of all battery charge displays:
■ Allow a battery pack to discharge to less than 5 percent of a
full charge through normal use before charging it.
■ When you charge a battery pack, charge it fully.
■ If a battery pack has not been used for one month or more,
calibrate the battery pack instead of simply charging it. For
calibration instructions, refer to “Calibrating a Battery Pack”
later in this chapter.
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