My group have not yet had the need of an arc truncheon but Scotland Yard is currently under the paint brush and so the possibility will arise soon.
I was musing on the mechanics of the weapon. It is an arc weapon and so, according to IHMN p26 (and ignoring the note that arc weapons aren't usable in close combat :-D ), takes a turn to recharge. However, all the arc weapons in the first book are distance weapons so it may be that it has different mechanics.
Qn 1. Does an arc truncheon take a turn to recharge?
Qn 2. More generally, assuming you do not have a nearby Arc Generator, what else can you do whilst you are using the hand-crank to recharge your weapon. Must you be motionless and not shoot or fight, as we are explicitly told for the Nock Gun, or can you get on with some other activities such as walking?
Questioningly yours
Tim