Car Battery Sizes Chart

Car batteries are the lifeblood of your vehicle, providing the necessary power to start your engine and keep your car running smoothly. However, not all car batteries are created equal, and understanding the different sizes and types can be confusing. In this article, we will provide you with a comprehensive guide to car battery sizes, including the standard sizes, how to choose the right size, and what happens if you choose the wrong size.

Car Battery Sizes Chart

Size Group Cold Cranking Amps (CCA) Reserve Capacity (RC)
47 47 480 90
34/78 34 650 110
24F 24 750 145
24 24 600 130
35 35 850 135
75/25 75 750 135
25 25 650 105
H6 H6 680 120
H8 H8 850 150
H5 H5 550 90

What are standard car battery sizes?

Car batteries come in a variety of sizes, but there are some standard sizes that are most commonly used. The most common sizes are group 24, group 27, and group 31.

Group 24 batteries are typically used in smaller cars and are the smallest of the three. They measure approximately 10.25 inches in length, 6.8125 inches in width, and 8.875 inches in height.

Group 27 batteries are slightly larger and are used in mid-sized cars and SUVs. They measure approximately 12.0625 inches in length, 6.8125 inches in width, and 8.875 inches in height.

Group 31 batteries are the largest of the three and are used in larger vehicles such as trucks and vans. They measure approximately 13 inches in length, 6.8125 inches in width, and 9.4375 inches in height.

How do I know what size car battery to buy?

The easiest way to determine the right size car battery for your vehicle is to consult your owner’s manual. The manual will provide you with the recommended battery size and specifications for your specific make and model.

If you don’t have access to your owner’s manual, you can also check the existing battery in your car. The size will be marked on the battery case, and you can use that information to purchase a replacement battery.

How big is a 12 volt car battery?

All car batteries are 12 volts, so the size will depend on the group size. The most common group sizes, as mentioned earlier, are group 24, group 27, and group 31.

What happens if you put the wrong size battery in your car?

Putting the wrong size battery in your car can cause a variety of problems. If the battery is too small, it may not be able to provide enough power to start your engine. If the battery is too large, it may not fit properly in your car’s battery compartment, and the terminals may not match up correctly.

In addition, using the wrong size battery can also cause damage to your car’s electrical system. It may cause the alternator to work harder than it should, leading to premature failure. It can also cause damage to the battery cables and connectors, which can be costly to repair.

In conclusion, choosing the right size car battery is crucial for the proper functioning of your vehicle. Make sure to consult your owner’s manual or check the existing battery for the recommended size before purchasing a replacement. Don’t take shortcuts or guesswork when it comes to your car’s battery – it’s always better to be safe than sorry.

About the author, Phil Borges

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.