When it comes to car batteries, there are two terminals that are of utmost importance- the positive and negative terminals. It is important to know which terminal is which because if you connect the wrong cables to the wrong terminals, you could cause serious damage to your battery or even your car.
The positive terminal is usually marked with a + sign or red in color, while the negative terminal is typically marked with a - sign or black in color. In order to avoid any confusion, it is best to consult your car's owner manual before attempting to jump start your battery or work with the electrical system in any way.
If you're ever unsure about which terminal is which, always err on the side of caution and ask a professional for assistance. Attempting to work on your car's electrical system without proper knowledge can be extremely dangerous and should always be avoided.