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Panasonic Toughbook CF-30C3DAZBM Reference Manual Page 23

Panasonic toughbook cf-30c3dazbm: reference guide.
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Battery Power
Correcting the Battery Display (Battery Recalibration)
The "Battery Recalibration" function measures and memorizes the battery capacity. To correct the battery display, use this
function to fill the battery and then discharge it completely. Perform the procedure at least once immediately after purchasing
the computer. Normally the interval of battery recalibration is 3 months. The battery display may not be correct when the bat-
tery pack deteriorates after a long time use. In this case, perform the procedure again.
1
Connect the AC adaptor.
2
Close all the applications.
3
Perform "Battery Recalibration".
Click
(Start) - [All Programs] - [Panasonic] - [Battery] - [Battery Recalibration].
A
When the confirmation message appears, click [Start].
B
Frequent recalibration of the battery can degrade the battery. A caution message appears when the battery
recalibration is performed at the shorter interval than approximately a month. In this case, cancel the battery
recalibration.
When the message requests shut down of Windows, click [Yes].
C
The battery recalibration starts.
After the battery pack is fully charged, discharging starts. When the discharging is completed, the power goes off
automatically.
After the battery recalibration is finished, normal charging starts.
NOTE
The temperature range should be 10
The battery recalibration may take a long time due to the large battery capacity. This is not a malfunction.
• Full charge: Approximately 5 hours (max.)
• Complete discharge: Approximately 5 hours (only for model with touchscreen)
If the computer is turned off during the battery recalibration (e.g., due to power failure, or accidental removal of the AC
adaptor and battery pack), the battery recalibration will not be completed.
You can also perform the battery recalibration with the following procedure.
Restart the computer.
A
Press and hold F9 while the [Panasonic] boot screen is displayed just after the computer starts the startup proce-
B
dure.
When the remaining battery capacity is displayed, press Enter.
C
Follow the on-screen instructions.
D
°
°
C to 30
C {50
Approximately 6 hours (only for model without touchscreen)
°
°
F to 86
F}.
23

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