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Batteries and Power Management
Using Battery Power
Reference Guide
33
To respond to a low-battery warning
The notebook automatically alerts you when the battery power drops to a critically
low level. The notebook first emits a high-pitched beep or displays a warning
message. Then, if you do not restore power within a short time, the notebook enters
Hibernation.
After the notebook enters Hibernation in this way, you will not be able to turn it on
again until you restore power by doing
one
of the following procedures:
•
Replace the battery with a charged one.
•
Plug in the AC adapter.
Note
If you plug in the AC adapter, you can continue to work while your battery
recharges.
To recharge the battery
CAUTION
The AC adapter is normally warm whenever plugged into an AC outlet. The
notebook is normally warm while recharging. Do not recharge the notebook in
a briefcase or other confined space, or the battery could overheat.
Plug the AC adapter into the notebook.
To get the longest operating time, wait until the battery charge is below 50 percent
before recharging, then charge it fully (100 percent). Charging can take up to several
hours. If you continue working while the battery charges, the charging time may
increase.
The operating time for a fully charged battery depends on the notebook model,
power management settings, and level of use.
Summary of Contents for Compaq NX9000
Page 1: ...HP Notebook PC Reference Guide ...
Page 11: ...Reference Guide 1 Getting Started with Your Notebook ...
Page 24: ...Reference Guide 15 Basic Operation ...
Page 38: ...Reference Guide 29 Batteries and Power Management ...
Page 44: ...Reference Guide 35 Modem and Network Connections ...
Page 56: ...Reference Guide 47 Add On Devices ...
Page 74: ...Reference Guide 65 Troubleshooting and Maintenance ...