how many volts?
There seems to be a problem with semantics. Current in milliamperes is a measurement of a rate of draw (a function of # of electrons per unit time) and not a total amount of power. If a series of servos was drawing 22 mA of current, the battery would only drop by 22 mAh after one hour! I believe that it would be more correct to state that (on the basis of measurement of capacity after a run) that the plane reduced the battery's charge at the rate of 22 mAh per minute. The actual current draw is 22 mAh/min x 60 min/hour = 1320mA. Much closer to what I would expect!
Ross