Get the end of the wires and connect it to the golden notches on the end of the battery and you should be good to go.
What this is, is a solar car but a phone battery instead of solar cells. With solar cars you can not always rely on the sun for it to work all the time or go through the troubles of following it around with an IL lightbulb. So that is when i took apart an old phone and salvaged the battery and taped it to the top of it. You have all the required parts where it is and just connect the ends of the wires to the end of the battery where the golden notches are and you have a phone battery operated car.
Step 1: Step 1
Get the phone battery and tape it to the top of the body of the car with the golden notches pointed to the back. You can use duct tape, scotch tape, but I used electrical tape and just wrapped it around a few times and it seems to stay put real well.