Robert;

Appreciate the info; I think what I will do is put a small charge port on the surface somewhere up front, and mount a switch on the inside of fuselage, as far up front as you suggested; so when I take the wing off, I can turn the ignition battery off then, and if I need to do a field charge I can charge through the port, I will get a battery pack with 2 leads, one for the switch and the other for the charge port, any problem doing a field charge this way and having the battery still connected to the Smart Fly Ignition Receiver because the switch would be on until I remove the wing?