Panasonic Toughbook CF-07 Series Reference Manual page 17

Battery Power
Accurately Displaying Battery Capacity
The battery pack has a function for measuring, storing and learning about battery ca-
pacity. Using this function properly to accurately display remaining battery capacity re-
quires that the battery pack be fully charged (charged to 100%), then fully discharged,
and then fully charged again.
This procedure should be performed once after you purchase the computer. As you use
the battery pack over a long period of time, the remaining capacity display may become
inaccurate due to aging of the battery pack and other factors. The procedure described
below should be repeated.
1
Power off your computer
Do not shut down using the standby or hibernation mode.
2
Connect your computer to the optional port replicator, external
display and external keyboard.
( Operating Instructions of the port replicator,
3
Attach the battery pack and connect the AC adaptor
Remove all unnecessary peripherals.
4
Once the battery indicator turns green, turn on the computer,
then use the "Refresh Battery" utility to fully discharge the bat-
tery pack
1 Run the Setup Utility. (
2 Select [Refresh Battery] from the [Main] menu and press Enter .
3 At the confirmation message, select [Yes] and press Enter .
The battery pack will be completely discharged, the computer will power off au-
tomatically, and then charging will commence. It takes approximately 1.5 hours
(when one battery is set) or 3 hours (when two batteries are set) until the power
automatically goes off through the complete discharge of the battery from the
fully charged state.
NOTE
The battery will not be refreshed correctly in the following cases.
When the power of the computer is cut.
When the electric power becomes disconnected (e.g., electrical outage, ac-
cidental removal of the AC adaptor, etc.).
5
Allow the battery pack to charge until the battery indicator turns
green
( "Starting Up/Shutting Down")
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