Your set up looks a lot like mine! I see you wired up an extra (5th) balance wire from the neg terminal of the battery. I did that at first as well, because the battery packs I used had five balance wires vs the 4 used by the Autel battery controller (it gets the neg value from the main neg wire), but then ended up cutting that 5th wire so that drive power doesn't go through that small wire to the neg wire to the drone. It isn't needed and therefore was just a potential failure point.
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