Helo, I'm new to 1/8 scale buggies so this a newbie question. I just bought a hump style battery pack for my buggy. I have xs3 reciever- i just realized that the battery connector is different than the connector on the reciever. what do i need to connect the battery to the reciever? The reciever has a two (prong?) connector and the battery has a three (prong?) connector.