I have my new Hobbywing 120a esc for my 550. What connector would you recommend me using on my setup? ES5, XT 90 or XT 60 for the esc to the motor and the esc to the battery. The battery is 5000mAh/ 6s. Just curious what other use .
Whatever the battery comes with unless you already have other helicopters that use the same size batteries, I have seen all three used on up to 700 size.
I would probably go with EC5 although I have used XT90 without problems.