Yes. You should set the discharge limit to 1.1v per cell. I use an Accu-Cycle Elite. It uses the "per cell" voltage. I don't know what other chargers use. You may have to do the math yourself (1.1 times the number of cells). Also, the discharge rate should approximate what the plane does. for a typical 4 or 5 standard servo plane, I use 300 mA. More servos, or high torque/speed servos draw more current so you should adjust the discharge rate accordingly. This will give you a more accurate idea of how much flight time you have.