Palm IIIc Handbuch Seite 10

Using the recharger kit in an airplane
The Auto/Air recharger connector enables you to use a DC
socket in an airplane to charge your organizer. If the airplane
has a cigarette lighter socket, see the automobile instructions.
To recharge your organizer in an airplane:
When using the recharger kit in an airplane, always
Note:
observe instructions for appropriate times of
operation, and be sure that the recharger connector
isn't bumped as passengers enter and exit the row.
Page 10 Palm IIIc™ Auto/Air Recharger Kit Handbook