About 40 mah per 8-9 minute Masters practice flight. Fut. 9550 on rudder and elevator, 9650 on aileron with a 6V regulator. My other airplane, an Impact, with two 9650 for elevators, Hitec 5945 on rudder, and two other karbonite Hitec digitals on aileron was at about 65 mah per 9 minute practice flight.