[WaterFreak]

For use during construction, you can use a standard power adapter that outpus ~ 9v (look in the user manual/FAQ on the IFIRobotics site).

During the competition, you MUST use a 7.2v battery (aka, a back-up battery). In the box is a small round mate for the power adapter. Carefully solder a red wire to the center post & a black wire to the outside post. At the other end, crimp on quick connects to mate up with the 7.2v back up battery adapter and away you go.