HP Pavilion zt1200 HP Pavilion Notebook PC zt1200 and xz300 Series - Reference - Page 51

To get the most from your batteries

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Batteries and Power Management Using Battery Power To get the most from your batteries Follow these suggestions to make your battery's power last as long as possible. • Plug in the AC adapter, especially when using a CD, DVD, or similar drive, or any external connections such as a PC Card or a modem. • Set the display brightness to the lowest comfortable level (Fn+F1). • Put the notebook on standby whenever you are not using it for a short while. • Put the notebook into hibernation whenever you want to save your current session, but will not be using the notebook for several hours. • Set the automatic timeout settings to emphasize saving power. If your notebook has a dual-speed processor, use the lower speed on battery power (the default settings conserve battery power). See "How the notebook manages power automatically" on page 46. • If your notebook has a wireless on-off button, turn off the wireless function when you're not using it. Press the wireless on-off button so the light turns off. • If you have an I/O PC Card-that is, a PC Card having an external connection, such as a network card-remove it when you're not using it. Some I/O cards use significant power even while they're inactive. • If you work with an application that uses an I/O PC Card, exit the application when you finish using it. • Install a different battery-see "Step 1: Install the battery" on page 20. In addition, follow these suggestions to extend the life of your battery. • Do not leave batteries unused for long periods. If you have more than one, rotate them. • If you normally use AC power, make a practice of using the battery as your power source at least once a week. • Unplug the AC adapter when the notebook is not in use. • To preserve the life of a battery, be sure to charge it regularly. • For long-term storage, the battery must be charged 20-50% to minimize capacity loss by self-discharge and to avoid deterioration of performance. Storing a fully charged battery can cause higher self-discharge and reduce its discharge capacity-even after recharging-as compared to a battery stored when charged 20-50%. Reference Guide 51

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Batteries and Power Management
Using Battery Power
Reference Guide
51
To get the most from your batteries
Follow these suggestions to make your battery
’
s power last as long as possible.
•
Plug in the AC adapter, especially when using a CD, DVD, or similar drive, or any
external connections such as a PC Card or a modem.
•
Set the display brightness to the lowest comfortable level (Fn+F1).
•
Put the notebook on standby whenever you are not using it for a short while.
•
Put the notebook into hibernation whenever you want to save your current session,
but will not be using the notebook for several hours.
•
Set the automatic timeout settings to emphasize saving power. If your notebook has a
dual-speed processor, use the lower speed on battery power (the default settings
conserve battery power). See
“
How the notebook manages power automatically
”
on
page 46.
•
If your notebook has a wireless on-off button, turn off the wireless function when
you
’
re not using it. Press the wireless on-off button so the light turns off.
•
If you have an I/O PC Card
—
that is, a PC Card having an external connection, such
as a network card
—
remove it when you
’
re not using it. Some I/O cards use
significant power even while they
’
re inactive.
•
If you work with an application that uses an I/O PC Card, exit the application when
you finish using it.
•
Install a different battery
—
see
“
Step 1: Install the battery
”
on page 20.
In addition, follow these suggestions to extend the life of your battery.
•
Do not leave batteries unused for long periods. If you have more than one, rotate
them.
•
If you normally use AC power, make a practice of using the battery as your power
source at least once a week.
•
Unplug the AC adapter when the notebook is not in use.
•
To preserve the life of a battery, be sure to charge it regularly.
•
For long-term storage, the battery must be charged 20
–
50% to minimize capacity loss
by self-discharge and to avoid deterioration of performance. Storing a fully charged
battery can cause higher self-discharge and reduce its discharge capacity
—
even after
recharging
—
as compared to a battery stored when charged 20
–
50%.