[GorillaMaxx360]

i am not sure but it would seem so for example in my m18t i will have a c4 and a quark 33a and 3cell lipo. these speeds would easly push 70 and up. But i never want to run it like that so what i do is get one lipo pack one matched cell pack and one 5v pack this 5v pack will keep it slow. But anyway it makes sense since with brushless it is all about the batteries. SO get a good battery and it is uncontrolable, get a bad battery in it and it becomes controlable but cinsiderably slower. I think this works. See what everybody else says. But dont get to bad of a battery