You could use the arming plugs that the electric guys use to make the connection between high power (50.4 volts 90 amps+) lipo packs and the ESC (motor control). We have to use the Red Schofield designed spark eliminator circuit but you don't need that for less than 30 amps. The arming plug itself is a male Deans plug with the two terminals connected and covered with heat shrink. The female deans mounts in a circular plastic flange that you install in a convenient location on your plane. I think the brand name Is Shumacher products. one version has male and female Deans plugs already installed. For two receiver packs two arming plugs are needed.I tried to upload a picture but the webpage won't co-operate. Just google RC airplane Deans arming plugs.