Connecting Terminals. When charging a battery, it is important to connect the cables to the proper terminals. Connect the red cable to the positive terminal on the battery, and the black cable to the negative terminal.
You decided to change the car battery but accidentally put the cables backward. Instead of connecting the positive (+) cable to the positive battery terminal, and negative (-) cable to the negative battery terminal you hooked them up backward.
You simply need a car with a well-functioning battery and jumpstarting cables. Connect positive to positive and negative to negative. Unfortunately, things may .