Ok so i have a small problem with my cultus carby 2004 model . I removed the car battery and now I have to put it back into the car. The problem is that I can't tell which cable is positive and which is negative. I understand that there are two conventions
Problem is that I have two cables like these in the car:
So is the red-black cable positive or the black only cable positive?
I understand that some cars can be positive grounded. Is that the case with this cultus 2004 model?
Also is it normal for it there to be sparks when you connect the cables?