RE: not sure what i am doing wrong, but the plane will barely fly!
im no rc expert, but i know my electronics. if you have 4x 11.1 volt 2200mah batteries, then wiring them 2 in series, 2 in parallel, then you have a 22.2 volt, 4400mah, effectively quadrupaling the wattage, by doubling the volts (2 in series) and doubling the amps (2 more in parallel). nice setup.