55
Battery Power
BSet alarm operations and remaining battery l evel for operating alarm functions.
When disabling the speaker by pressing
Fn
+
F4
, the sound alarm is also
disabled.
A. When making a setting for [When the alarm goes off, the computer will] in
[Alarms] - [Alarm Action]:
Add a check mark for [Force stand by or shutdown even if a program stops
responding.].
B. Set the value for [Critical battery alarm] to 5% or more.
This is necessary for the standby or hibernation function t o be completed
(assuring data is saved) when the battery level is low.
The battery pack has a function for measuring, storing and learning about battery capacity.
Using "Battery Recalibration" function to accurately display remain ing battery capacity
requires that the battery pack be fully charged (charged to 100%), then ful ly discharged. 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 following procedur e
should be performed again.
NOTE
Perform the following procedure in a temperature range of 10°C to 30°C {50°F to
86°F}.
"Battery Recalibration" function takes time to execute because of the large batter y
capacity; this is not a malfunction.
• Time taken to obtain a full charge: Approx. 4 hours [max.]
• Time taken for a complete discharge: Approx. 4.5 hours
If the computer is turned off while performing "Batter y Recalibration" (electrical power
outage, accidental removal of the AC adaptor or battery pack, etc.), "Batter y
Recalibration" will not be performed properly.
Accurately Displaying Battery Capacity (Battery Recalibration)