HP OmniBook 3100 HP OmniBook 2100 and 3100 PC User’s Handbook - Not O - Page 23

Managing Battery Power

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3. Managing Battery Power • Recharging and Replacing Batteries. • Conserving Battery Power. The primary portable source of power for the OmniBook is a replaceable, rechargeable battery. Your OmniBook accepts a main battery (in the battery bay) and, if desired, a secondary battery (in the plug-in module bay). Lithium-ion batteries provide the same or better battery life at a reduced weight. In addition to the replaceable batteries, there is a permanent, internal backup battery, which recharges whenever the OmniBook is on or is connected to ac. It maintains certain internal settings, such as the clock. The OmniBook provides several safeguards so that you won't be surprised by a dead-battery condition. • The status panel shows the remaining battery charge. • Built-in warnings alert you to a low battery condition. • The OmniBook automatically turns off when the battery charge gets too low- your session continues when you start recharging the battery or insert a fresh battery. • Data previously saved on any of the drives is not affected by a low battery. However, unsaved data could be affected if the battery runs down completely while writing data to the drive. Recharging and Replacing Batteries • To respond to a low-battery warning. • To recharge the battery. • To replace the battery. To respond to a low-battery warning When battery power is critically low, you are alerted by one or more of the following: • The battery indicator in the status panel appears empty. • The computer emits a warning beep. This reminds you to save your work. • If the OmniBook has been off, you will not be able to turn it on. The OmniBook automatically hibernates (turns off) to preserve your current session and data. (If Hibernate is disabled in the BIOS Setup utility, then unsaved data are not protected.) You won't be able to turn the computer on again until you restore power by one of the following actions: • Plug in the ac adapter. See "To recharge the battery." -or- 23

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23
3. Managing Battery Power
•
Recharging and Replacing Batteries.
•
Conserving Battery Power.
The primary portable source of power for the OmniBook is a replaceable,
rechargeable battery. Your OmniBook accepts a main battery (in the battery bay)
and, if desired, a secondary battery (in the plug-in module bay). Lithium-ion batteries
provide the same or better battery life at a reduced weight.
In addition to the replaceable batteries, there is a permanent, internal backup
battery, which recharges whenever the OmniBook is on or is connected to ac. It
maintains certain internal settings, such as the clock.
The OmniBook provides several safeguards so that you won’t be surprised by a
dead-battery condition.
•
The
status panel
shows the remaining battery charge.
•
Built-in warnings alert you to a low battery condition.
•
The OmniBook automatically turns off when the battery charge gets too low—
your session continues when you start recharging the battery or insert a fresh
battery.
•
Data previously saved on any of the drives is not affected by a low battery.
However, unsaved data could be affected if the battery runs down completely
while writing data to the drive.
Recharging and Replacing Batteries
•
To respond to a low-battery warning.
•
To recharge the battery.
•
To replace the battery.
To respond to a low-battery warning
When battery power is critically low, you are alerted by one or more of the following:
•
The
battery indicator
in the status panel appears empty.
•
The computer emits a warning beep. This reminds you to save your work.
•
If the OmniBook has been off, you will not be able to turn it on.
The OmniBook automatically
hibernates
(turns off) to preserve your current session
and data. (If Hibernate is disabled in the BIOS Setup utility, then unsaved data are
not protected.)
You won’t be able to turn the computer on again until you restore power by one of
the following actions:
•
Plug in the ac adapter. See
“To recharge the battery.”
–or–