Panasonic CF-T2 Series Reference Manual page 41

Battery Power
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 to be completed
(assuring data is saved) when the battery level is low.
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