Powering the RC

[Al Skierkiewicz]

I wouldn't do this. (i.e. above) Temp wiring is always bad but it is made worse when dealing with a $1000+ part. You wouldn't try to lash a makeshift power source to your PC.
Any +12 volt source is capable of powering the RC. Run down to Radio shack and find their section of C or D size battery holders. If they don't have one that can handle 12 volts get two six volt holders and wire them in series. Add the needed 1.5 volt batteries, wire to the RC as you normally would (with a fuse), connect a tether cable and away you go.
Never use a charger for a power source. They are usually unfiltered which means they have a pulsed output that is much higher than the 12 volts needed for the RC. smart chargers are looking for a battery as a load and while doing the check may supply lethal currents to the RC or other electronics.