It's strange , but it appears that the cable is attached to or plugged into the hero before the switch of the sabers happens.
The wire goes behind his hand and into the fat white thing pretty much exactly how it sits later when connected to the stunt. If it was loose it would be hanging down from the sleeve:
Then there seems to be some black tape - like they cut the cable to extend it with these connectors and then taped it together.
I've not played with the Andersons connectors yet, but they are one per wire, right? Wouldn't that make it even more trickier to plug the way that guy does in the video? Maybe he's actually supporting them with his other hand - the video is too blurry to tell.
As for if it is the same hilt or not - I can't really tell. The booster kind of looks like this one though:
However, if what I see here is the control box facing down and the lever (but really hard to be sure at all what I'm seeing there) :
It could be the v2 after all, but with the pommel rotated a little maybe.
I'm only absolutely certain this below is the v2 as I can see the missing bar / rectangle nut
.
So I've ultimately decided to finish mine like that. Just painted black (maybe the windvane ring is very dark brown?) , the wire is wrapped with black as well (no connector on the pommel side, powerpoles on the battery side) - both match what I see on the picture with the red switch as well.
Initially I was thinking to finish it like what I see during most of the duel: gray/worn emitter, windvane ring is painted with brass-like paint with some brown on top. The cable - white with black connector (or tape) going into the pommel, and thought it's always the same like on the saber ignition scene. Also there's black paint under the clamp holes (could be just the other side, but there is no paint under the clamp holes on the pictures above)
So it must be rewired a few times for sure (and the whole visible part of the cable wrapped with black tape at some point), but also repainted.
Here are some other variations of the wiring :
On left what appears to be a thick black piece, maybe 2 black connectors , maybe the white/black one covered with tape, but the black part is much thicker and longer compared to most of the other screengrabs. On the right side is the cable covered with black tape to where I guess they thought it will be visible (likely the final state of the cable).