7-4 C
ARING FOR
Y
OUR
B
ATTERY
P
RESARIO
N
OTEBOOK
B
EYOND
S
ET
-
UP
G
UIDE
1200 S
ERIES
Battery
Calibration
All batteries lose their
charge if they have not been
used for a long period of
time. In this section you
will become familiar with
the following:
• Calibrating the Battery
• Maximising Battery
Operating Time
• Fixing a Low-Battery
Condition
Do not plug in the AC adapter
while the battery is draining or
you will have to begin again at
step 1.
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. Re-
calibrating 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 light above the
Battery Charge
7
icon turns off, indicating that the
battery is fully charged.
b. After the battery charge light turns off, unplug the
AC adapter.
2. Turn on or restart your Notebook.
Steps 3 through 6 prevent your Notebook from entering Sleep
mode. These steps also allow the battery to drain faster.
3. On the Windows taskbar, click Start,pointtoSettings,
and then click Control Panel.