A booster battery is fine. If you plan to "jump start" with another vehicle, budget for a new SKREEM/Seat Belt Module/Airbag Module. Im not saying you WILL destroy all three, but you will be placing them at risk.
The Crossfire is NOT a car you should attach jumper cables to - not to jump the Crossfire or to use the Crossfire to jump another car.

You might take note that more than one of us is saying the same thing.