I have several flights on it now and still have to be very judicious with the throttle - this plane is just a pure blast to fly. I'm using Turnigy 4s 2650mah batteries from Hobbycity (about $35 + shipping) and they are working great. You want an adrenalin rush - just get close to the ground [:-]. I can't believe this thing only costs $129.00 right now.