Panasonic Toughbook CF-31AAA7J1M Reference Manual page 30

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)
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.
*5
Windows XP: [start]
NOTE
The temperature range should be 10
The battery recalibration does not work correctly if a port replicator other than the CF-VEB311 is connected. (The bat-
tery recalibration will not end.) If you are using a port replicator other than the CF-VEB311, disconnect it before starting
the battery recalibration.
The battery recalibration may take a long time due to the large battery capacity. This is not a malfunction.
• Full charge:
• Complete discharge: <For model with Intel
*5
- [All Programs] - [Panasonic] - [Battery] - [Battery Recalibration].
° °
C to 30 C {50
Approximately 3.5 hours (max.)
®
Centrino
Approximately 2.5 hours (when [Switchable Graphics] in the main menu of the Setup Utility is
set to [Switchable] or [Performance Video] for the model with Discrete Video Controller)
Approximately 3 hours (when [Switchable Graphics] in the main menu of the Setup Utility is set
to [Power Saving Video] for the model with Discrete Video Controller, or for the model without
Discrete Video Controller)
° °
F to 86 F}.
®
Advanced-N 6205>
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