Yea, Im 99.99% sure I tried it like that.. the esc fan came on but the ESC didnt.. He only ran it on a bench to make sure it worked.. so it was fine, as no load was put on it.. And, Its wired think how I said above. I tried it like the one for single packs but esc didnt work.. So Im very confussed and tbh getting very frustrated.. and pain as I dont have it here.. and probally wont be back home till weekend after next to fiddle with it.. which is my 1st meeting I was going to use it.. but its unlikely.. I can tbh Unless I can fix it.. or something