lehner 2400XL/warrior 7018/18cells?

[captain harlock]

If you are going to use a high cell count then I do not think the 7018 controller is your best choice unless you can use a very low end motors like the 2400xl. So yes. Go with the 2400xl/7018 setup, although I do recommend to use the 30120 controller. Its pricy, but it will surely keep you at the best condition. Be sure to use a cooling fan on your controller if you're going to use the 7018 S/C for best effeciency.