1.Brushless speed controller-ESC 85A 2.Extremely low internal resistance 3.Super ... ESC 85A,70A,60A,50A,40A,30A,20A,12A,8A brushless speed controllerfor HelicopterWires Connection: Always use new connectors, which should ... the “JR” connector into the receiver throttle channel.5.Controller Red and Black wires connects to battery pack Red and ... 85A,70A,60A,50A,40A,30A,20A,12A,8A brushless speed controller