This pack is designed for powering a receiver, servos, lights, ignition systems and most other on board electronics. It is not designed to power the electric motors used in propulsion while using the supplied output lead.
Output is a standard Futaba style servo plug. It will fit most receivers on the market. For JR and Hitec receivers that have compartmented input pins, you will have to shave off the plastic tab on the side of the plug to make the connector fit. This will not hurt the plug. Use a sharp knife to remove the tab.