my dad and i got 2 different radios but same channel and different planes. we have had the radios for a couple of months i got a hitec optic and my dad has a hitec laser 4, both radios came with a 600 mah battery. but with all the wires and the antenna are good says the guys at my club. the antenna is out side of the fuse in all the planes we have. every time we lost control of the plane nobody else was looking to see it. but the batteries hasn't been low to many times.