Luckily, its an easy fix. Remove the old battery terminal from the battery. Pick up a universal top post repair terminal and top post battery terminal cleaner (has a wire brush in it) from an auto parts store. Cut the old battery cable off just behind the old terminal, strip back enough bare battery cable wire to install the battery cable onto the new terminal. Clean the battery terminal with the battery terminal cleaner. Install the new terminal with the attached battery cable and you are done.