recent years, the most common design was the SAE Post, consisting of two lead posts in the shape of truncated cones, positioned on the top of the battery, with slightly different diameters to ensure correct electrical polarity.
The "JIS" type is similar to the SAE but smaller, once again positive is larger than negative but both are smaller than their SAE counterparts. Most older Japanese cars were fitted with JIS terminals. Cohomer dot com webiste, show more battery terminals, the positive terminal inner size is larger than the negative terminal, with about 0.1-0.5cm.
General Motors, and other automobile manufacturers, have also begun using side-post battery terminals, which consist of two recessed female 3/8" threads (SAE 3/8-16) into which bolts or various battery terminal adapters are to be attached. These side posts are of the same size and do not prevent incorrect polarity connections.
L terminals consist of an L-shaped post with a bolt hole through the vertical side. These are used on some European cars, motorcycles, lawn and garden devices, snowmobiles, and other light duty vehicles.
Some batteries sizes are available with terminals in many different configurations, but two main configurations are:
positive on left and negative on right corner
negative on left and positive on right corner.
Terminals can also be both on the long or short side of the battery, or diagonally opposed, or in the middle. Purchasing the wrong configuration may prevent battery cables from reaching the battery terminals.
The positive terminal on a battery is the one with the + sign on it. Sometimes it is painted red.
The negative terminal of a battery has a - sign and positive terminal has a + sign.
The positive end of a battery goes to the positive end of the terminal. In retro spec, the negative end of a battery goes to the negative end of the terminal.
The positive + terminal is slightly larger.
the positive terminal in a battery
Two. The positive terminal, and the negative.
The battery in located in the trunk, and the positive terminal is the one that is slightly larger and labeled with a + sign.
The top of a battery is called a carbon rod, which is on the positive terminal.
What happens when you inadvertently crossed the positive battery terminal from a negative to a positive and a positive to a negative.?Read more: What_happens_when_you_inadvertanly_crossed_the_positive_battery_terminal_from_a_negative_to_a_positive_and_a_positive_to_a_negative.
Red, positive + cable to Positive + battery terminal. Black, negative - cable to Negative - battery terminal.
Disconnect the negative - terminal first, then the positive + terminal. Unfasten the battery hold down clamp. When reinstalling the terminal connections connect the positive terminal first.
Center terminal is connected to the positive from the battery. Outside is connected to ground (-).
Corrosion or a very loose connection at the positive terminal.