Car Battery Weight Chart

When it comes to car batteries, weight is an important factor to consider. Not only does it affect the overall performance of your vehicle, but it can also impact the ease of installation and maintenance. In this article, we’ll explore the topic of car battery weight in-depth and provide you with a comprehensive chart to help you find the right battery for your car.

Car Battery Weight Chart

Here is a chart of the average weight range for common car battery sizes:

Battery Type Voltage (V) Weight (kg)
Standard Lead Acid 12 14.2
AGM Flat Plate 12 14.7
AGM Spiral Plate 12 15.2
Gel 12 17.5
Lithium Iron Phosphate 12 4.5
Calcium 6 9.3

Keep in mind that this chart is for reference only, and the actual weight of a battery may vary depending on the brand and type. It’s always best to check the manufacturer’s specifications before purchasing a replacement battery.

How much does a car battery weigh?

The weight of a car battery can vary depending on the type, size, and brand. On average, a standard car battery weighs around 40 to 60 pounds (18 to 27 kg). However, some batteries can weigh as little as 30 pounds (13.6 kg) or as much as 70 pounds (31.7 kg). It’s important to note that the weight of the battery includes not only the lead-acid cells but also the plastic casing, terminals, and electrolyte.

What is the weight of a 12V car battery?

Most car batteries are 12V, so the weight range we discussed earlier applies to these batteries as well. However, it’s worth noting that there are different types of 12V batteries, including conventional flooded batteries, AGM (Absorbent Glass Mat) batteries, and Gel batteries. AGM and Gel batteries are generally heavier than flooded batteries due to their construction and materials.

Why is a car battery so heavy?

Car batteries are heavy because they contain lead-acid cells that produce electricity through a chemical reaction. These cells are made up of lead plates and an electrolyte solution of sulfuric acid and water. The more cells a battery has, the more power it can produce, which means more weight. In addition, the plastic casing, terminals, and other components also contribute to the overall weight of the battery.

How do you calculate battery weight?

To calculate the weight of a battery, you need to know its capacity (Ah) and the specific gravity of the electrolyte. The formula is as follows:

Battery weight = (Ah x SG x 1.2) + (terminal weight + case weight)

Ah = Ampere-hour rating of the battery
SG = Specific gravity of the electrolyte (usually around 1.25 for lead-acid batteries)
1.2 = Conversion factor for weight of electrolyte
Terminal weight = weight of positive and negative terminals
Case weight = weight of plastic casing

However, this calculation is not necessary when choosing a replacement battery for your car. Most manufacturers provide the weight of their batteries, and you can also refer to our car battery weight chart below.


In conclusion, understanding the weight of your car battery is essential to maintaining its performance and longevity. Whether you’re replacing an old battery or upgrading to a new one, be sure to consider the weight as well as the other factors such as capacity, type, and brand. With our car battery weight chart and the information we’ve provided, you’ll be able to find the perfect battery for your vehicle.

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.