The Most Complete Car Battery Size List, Let's Find Out!

When you plan to replace or buy a car battery, you need to know the list of car battery sizes to avoid making the wrong choice. The many batteries available on the market can sometimes make it confusing for you to determine your choice.

So, what is the capacity of a car battery in watts? Generally, car batteries have a voltage of 12 Volts, which means the standard voltage size of a car is 12 Volts. However, for cars with larger power capacities, such as trucks, they usually require a battery with a voltage capacity of 24 Volts. To avoid confusion and making the wrong choice, pay attention to the complete review of car battery sizes below.

List of Car Battery Sizes

You can determine the size of a car battery by paying attention to the ampere size of the battery by understanding standard battery codes such as JIS, DIN, or ETN.

1. JIS Battery Code

When you find the JIS code on a car battery, it means that the battery is made in Japan. This is in accordance with the meaning of the abbreviation JIS (Japanese Industrial Standard). This code can usually be found on the top part of the battery body, and it typically has two types of code writing such as NS40ZL or 36B20L. Here’s how to read the code:

For example, the battery code 36b20L can be interpreted as follows:

36: this number indicates the actual capacity of the battery is 36 Ah.
B: this letter code indicates the height and width size of the battery.
20: this number code indicates the length of the battery, meaning the battery has a length of 20 cm.
L: while this letter code indicates the position of the pole or negative terminal of the battery is on the left side. If you find the letter code R, it means the negative terminal of the battery is on the right side.

2. DIN or ETN Battery Code

The DIN code stands for Deutsche Institut Fur Normung (the battery is from Germany). Meanwhile, the ETN code stands for Europe Type Number (the battery complies with the standards of countries in Europe). Batteries with DIN or ETN codes have codes consisting of five digits. However, what you need to pay attention to is only the first three digits. Here’s how to read it:

For example, the battery code 55530:

This can be interpreted as the first number (which is 5) being changed to 0. The second and third numbers remain unchanged. From these two numbers, you can determine the battery capacity is 55 Ah. Here are the rules for reading DIN or ETN battery codes:

If the first number is 5, it will be changed to 0
If the first number is 6, it will be changed to 1
If the first number is 7, it will be changed to 2

List of Car Battery Sizes Based on Ampere Capacity

Using a car battery carelessly without considering the standard requirements can cause the battery to easily drain or fail.

You can determine the ampere size of a car battery by paying attention to the Ah symbol on the battery. This symbol indicates the maximum amount of electric current produced by the battery over a period of one hour.

Negative Effects of Using an Incorrectly Sized Car Battery

In addition to causing the battery to easily fail, other negative effects you may experience when the battery size does not meet standards are as follows:

Damage to several components in the car's electrical system
The car's alternator cannot function optimally and may wear out quickly
Increased costs due to the damage of many car components