Replacing The Battery Pack - Panasonic Toughbook CF-31AAA7J1M Reference Manual

Battery Power
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

Replacing the Battery Pack

The battery pack is a consumable item so the replacement will be necessary. If the battery operation time becomes noticeably
short and not recovered even after recalibrating the battery, replace with a new battery.
<Only for model that supports a second battery pack>
If necessary, attach the second battery pack to the multimedia pocket (
CAUTION
The battery pack is not charged when you first purchase it. Be sure to charge it before using for the first time. Charging
starts automatically when the AC adaptor is connected to the computer.
Use only the specified battery pack with your computer.
*6
In sleep , do not remove/replace the battery pack. Otherwise your data will be lost and the computer may be dam-
aged.
1
Turn off the computer.
Do not use the sleep
<For model with Atheros AR928X>
Approsimately 2 hours
*6
function.
page 35).
31