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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 ( “Starting Up/Shutting Down”)
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, page 21)
3 Attach the battery pack and connect the AC adaptor
Remove all peripherals (except for the battery pack and AC adaptor).
4 Use the “Refresh Battery” utility to fully discharge the battery
pack
1 Run the Setup Utility. ( page 28)
2 Select [Refresh Battery] from [Main] menu and press Enter .
3 At the confirmation message, select [Yes] and press Enter .
Once the battery indicator turns green, the battery pack will be completely dis-
charged. 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.
5 Allow the battery pack to charge until the battery indicator turns
green
<Charging Time>
One battery: approximately 2 hours
Two batteries: approximately 4 hours
Accurately Displaying Battery Capacity
Battery Power
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