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7-4 C
ARING
FOR
Y
OUR
B
ATTERY
P
RESARIO
N
OTEBOOK
B
EYOND
S
ETUP
G
UIDE
1800 S
ERIES
Battery
Calibration
All batteries lose their
charge if they have not been
used for a long period of
time. In this section of
“Caring for Your Battery”
you will become familiar
with the following:
• Calibrating the Battery
• Maximizing Battery
Operating Time
• Fixing a Low-Battery
Condition
Calibrating the Battery
You may notice that the battery
gauge does not correctly display
the battery charge level when you
first receive your Notebook, or if
you have not used your Notebook
for a long period of time. If the
battery gauge becomes inaccurate,
you must recalibrate your battery.
Recalibrating the battery simply
means recharging the battery to its
maximum capacity and resetting
the battery gauge to display the
level of charge accurately.
To recalibrate the battery, complete the following steps:
1. Plug in the AC adapter:
a. Allow the battery to charge until the Battery Charge
icon turns off, showing that the battery is fully charged.
b. After the battery charge light or the icon turns off,
unplug the AC adapter.
2. Turn on or restart your Notebook.
Steps 3 to 6 prevent your Notebook from entering Sleep mode.
These steps also allow the battery to drain faster.
3. On the Windows taskbar, click Start, point to Settings,
and then click Control Panel.
4. Double-click the Power Management
icon on the
Control Panel. The Power Management Properties dialogue
box opens.