The red battery cable is the positive one. The positive cable supplies the voltage to the starter and the main power center, then distributes it to the rest of the vehicle. The negative (black) cables supply the ground to the entire vehicle, which is what makes the circuit complete and allows the electricity to work.
Red cable to positive, black cable to negative.
The red cable is the positive and the black cable is the negative. The positive post is slightly larger.
Red/positive cable to red/positive cable. Black/negative cable to black/negative cable. The battery is under the cover in front of the air cleaner.
Black is negative and Red is positive.
Audio battery???? If you mean Auto Battery then Red Positive (+) RED cable goes to Positive (+) post on battery. Black Negative (-) cable goes to Negative (-) post.
Red, positive + cable to Positive + battery terminal. Black, negative - cable to Negative - battery terminal.
I assume you're asking how can you tell which is positive and which is negative? The red cable is positive in the black cable is negative. But if they are not color-coded the positive battery post is slightly larger than the negative battery post. If you try to connect the negative cable to the positive post it would be a tight fit and if you connect the positive cable to the negative post it would be loose.
Red is positive. If they are both black then the cable that is connected to ground is negative and the other cable is positive.
red to positive, black to negative
On the battery is marked - or +. The red cable is positive and the black is negative.
No one is negative and one is positive charge
Connect the positive + red charger cable to the positive + red battery post. Then connect the negative - black charger cable to the engine somewhere. Most engines have something metal sticking up that you can connect to. Do not connect the negative charge cable to the negative battery post, always connect it to the engine.