Calibrating A Battery Pack; When To Calibrate - HP Compaq NW8000 Hardware Manual

Battery Packs

Calibrating a Battery Pack

This section describes when and how to calibrate a battery pack.

When to Calibrate

Even if a battery pack is heavily used, it should not be necessary
to calibrate it more than once a month. It is not necessary to
calibrate a new battery pack before first use. Calibrate the battery
pack under the following conditions:
■
When battery charge displays seem inaccurate.
■
When you observe a significant change in battery run time.
■
When the battery pack has not been used for one month
or more.
How to Calibrate
To calibrate a battery pack, you must fully charge, fully
discharge, then fully recharge the battery pack.
Charging the Battery Pack
Battery packs can charge whether or not the notebook is in use,
but charge faster when the notebook is off.
To charge the battery pack:
1. Insert the battery pack into the notebook.
2. Connect the notebook to an AC outlet or an optional
Automobile Power Adapter/Charger. The battery light
on the notebook turns on.
3. Leave the notebook connected to external power until the
battery pack is fully charged. The battery light on the
notebook turns off.
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