User's Manual

Chapter 5 — Power Management

Power Management

Battery Calibration

The first time you use a battery, you should calibrate it. The calibration

process empties and charges the battery one time. This allows the

Windows battery gauge to accurately monitor battery status. To

calibrate a battery, follow these steps:

1. Plug in the AC adapter.

2. Restart the computer and when the startup screen appears,

press Del key to enter the BIOS Setup Utility.

3. In the BIOS Setup Utility, select Power Management Setup ,

choose Battery Auto Calibration, then press <Fn><PgDn>.

Please make sure that AC adapter & Battery are present?

Would you to do battery auto-learning?

Yes.

No. (System Reboot)

4. Press <Y> at the above Battery Auto Calibration dialog to begin

the battery calibration. Please press [Space Bar] to select option,

and [Enter] to continue.

Battery Calibration will take from 8 to 10 hours, depending on how

much power the battery may already contain.

Note: For optimum performance, we recommend

calibrating the battery again every three months.

Each time you charge and discharge a battery, it

loses a tiny part of its storage capacity, so that,

over time, it will store less than its potential

charge. Similarly, if you do not use the battery

for a few days, it will slowly self-discharge, and

when it is recharged, it will hold less than 100%

of the potential charge.