Updated at: 24-07-2022 - By: Lucas

The battery of an automobile is a critical component. The engine won’t start if it isn’t working properly. There are a few things that drivers should keep in mind when making a battery purchase.

The car’s owner’s manual will also list the battery’s capacity (A / h), beginning current (A / h), and date of manufacture, but many drivers don’t realize or neglect the importance of the battery’s size when it’s time to replace it.

When a car owner decides to install a new battery, they take this into consideration. It’s impossible to put it back where it belongs. The battery cannot be installed because of a lack of available space or because the wires connecting it to the appropriate terminals are too short.

Car battery sizes are different

Car Battery Dimensions

When you’re looking to replace the car’s battery, the first thing you need to consider is where you live. Yes, just where did you get your car? According to where you live, the size of a car battery can vary.

Beyond the fact that the battery’s power and capacity define its size, which in turn is dependent on the technology and kind of manufacture, the country in which the automobile was built has a number of regulations for compliance, which also affect the battery’s dimensions.

There are different dimensions in Europe, Asia, and North America. Due to its outward dimensions, a battery from a car made in Asia won’t fit in a car made in Europe, for example.

In order to work, only batteries from South America are compatible with those in Europe’s automobiles.

Batteries, for example, are smaller in width and length on Japanese engines than on European counterparts, but taller in height. It’s important to remember that if you need to replace a battery in an Asian car, you’ll need to look for an authentic brand-name battery.

Additionally, in the United States and Canada, the battery connections are located on the long side of the battery, rather than the top, as they are on EU cars. Most likely, the batteries sold in auto parts stores will not work with your vehicle’s wiring and connections. Look for or acquire a genuine American standard battery in this case.

Be careful while purchasing an American automobile battery, as they are different from those in other countries.

The position of the terminals and the size of the terminals are also crucial factors in the ability to install the battery in the engine compartment. As the name implies, this parameter determines how close the battery terminals are located to the battery’s casing.

  • straight polarity – when the positive (+ sign) terminal is on the left, and the negative (- sign) is on the right;
  • reverse polarity – when the terminals are swapped.

The dimensions of the battery’s usual mounting in the engine compartment are another key consideration when it comes to battery size. Your automobile has a space for the battery with predetermined sizes, and ignoring or not knowing this will compel you to either change or buy a new battery.

I’ve heard of drivers who replaced their car batteries and purchased a new one without regard to its size, only to discover that the new battery wouldn’t fit in the engine compartment.

So, instead of changing the batteries, they chopped the walls of that particular location or other features to prevent the battery from moving when driving in order to make some room for them. This worked. As a result, the engine stalled since the battery couldn’t hold its charge any longer.

As a result, it’s important to notice that the size of the battery ensures the battery’s stability and safety. Battery life is unlikely to be extended by the constant bouncing and vibrations that come with driving. It is also unknown where and in what condition a loose battery with acid will be in the case of an emergency

This is yet another argument in favor of purchasing the vehicle-recommended battery. You don’t have to worry about battery size difficulties in the future if you do some research now. If you’re unsure about the battery size, bring the old one with you to the shop and buy a new one, or write down the dimensions of the old one on a piece of paper.

Standard car battery sizes

Car Battery Dimensions-3

We’ll go over the various battery sizes and dimensions here.

The following sizes are available from Asian manufacturers of automotive batteries with a capacity ranging from 35 to 70 A/h:

  • width: 127 to 175 mm (5 – 6.89 inches)
  • height: 190 to 227 mm (7.48 – 8.93 inches)
  • length: 187 to 261 mm (7.36 – 10.27 inches)

The dimensions of larger-capacity automobile batteries, such as those ranging from 90 to 120 A/h, are predetermined.

306, 173, and 225 mm (12. 04, 6. 81, 8. 85 inches)

  • width: 175 mm (6.89 inches)
  • two heights: 175 and 190 mm (6.89 and 7.48 inches)
  • length: 175–242 mm (6.89 – 9.52 inches)

Between 40 and 70 amp-hours, European automobile batteries come in these shapes and sizes:

  • height: 175–242 mm (6.89 – 9.52 inches)
  • width: 175–240 mm (6.89 – 9.44 inches)
  • length: 278-518 mm (10.94 – 20.39 inches)

Typical 70 225 A/h European automotive batteries come in the following shapes and sizes:

The following are typical sizes for 70 225 A/h automobile batteries in the United States:

  • height: 192–229 mm (7.05 – 9.01 inches)
  • width: 173–190 mm (6.01 – 7.48 inches)
  • length: 230-381 mm (9.05 – 15 inches)


When it’s time to replace the automobile battery, it’s crucial to examine the size of the battery as well.