It could be handy to connect
a trickle charger ocassionaly during long periods of non use

I don't mean to hijack your thread; I think this is relative.
Talk about a coincidence! I also have a November model. When I plug
in the yellow "jumper" tool, the gyros spool up as though the master
is turned on. I would attach alligators from the charger to the
external power point, through the yellow "jumper" tool, but i don't
want to leave the gyros spinning for hours while the battery charges.
How can I charge the battery without the gyros spinning? (with the
cowl on) Maybe someone here knows both answers. TIA