Highly doubt an Avata, as Avatas typically aren't used by FPV pros. Probably a small, custom-built cinewhoop? I'm very curious what camera they might have used as the footage looks too clean to be a GoPro or DJI Air Unit in such low light. I...
I suspect Anker didn't understand the question, assuming that the batteries are charged on their own and not through a hub, perhaps? The power bank will work fine.
Because your post implies, through a very narrow use of the term "li-ion" (you say: "all DJI drones use lithium-ion chemistry batteries") that all of DJI's batteries are Li-Ion batteries. But there is a distinct difference between lithium-ion...
Uhhh... that's exactly what I said. What you said is true strictly on a pedantic level.
But saying Li-Pos and Li-Ion batteries are the same is like saying toilet paper and copier paper are the same thing because they are both made out of...
Except on a strictly pedantic level, this is false. DJI uses a mix of LiPo and Li-Ion batteries (the only Li-Ion battery I can think of offhand is the Avata). I mean, techincally LiPos are "lithium ion" batteries in the sense that they use...