WM-
No problems with this setup. The battery is actually in the bottom of the nose gear well and the wires run through the fuse to the wings and then out the wing to the nacelle and plug into the switch and the switch goes to the ignition. the battery/ignition wire also runs together with the choke and throttle servos through the wing. Never a glitch! I'm using a 3500 mAh SR NiCd for nose weight I have 2 battery outputs for the ignitions.