User's Manual

Battery Packs
Hardware Guide 3–17
DRAFT - Revised: 10/28/02
Compaq CONFIDENTIAL—For Internal Use Only
11/13/02
File: SP-CH3-Battery.fm
How to Calibrate
Calibration requires 3 steps:
1. Fully charge the battery pack.
2. Fully discharge the battery pack.
3. Fully recharge the battery pack.
Charging the Battery Pack
You can charge the battery pack while the notebook is on or off,
but the battery pack charges faster while the notebook is off.
Fully charge the battery pack according to the “Charging a
Battery Pack” section earlier in this chapter. Be sure the battery
light turns off, signaling that the battery is fully charged.
Discharging the Battery Pack
The notebook must remain on while the battery pack is being
discharged. The battery pack discharges whether you are using
the notebook, but discharges faster while the notebook is in use.
If you plan to leave the notebook unattended during the
discharge, save your work before beginning the discharge
procedure. If you use the notebook occasionally during the
discharge procedure and have set energy-saving timeouts, expect
the following performance from your system during the discharge
process:
■ The monitor will not turn off automatically.
■ Hard drive speed will not decrease automatically while the
notebook is idle.
■ System-initiated Standby will not occur.
■ System-initiated Hibernation will not occur until the battery
has discharged to a critical low-battery condition.