Each vehicle needs a different battery size and many other things. Because of this, each car battery will have a different weight from the other. But, according to research, the average weight of a 12v lead-acid battery is about 41 pounds. In this article, we will tell you why it is necessary to know How Much Does a Car Battery Weigh.
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- 1 Why do you need to know the weight of the battery?
- 2 How much should a car battery weigh?
- 3 Table of popular car battery weights
- 4 Why are car batteries heavy?
- 5 How to determine the weight of a car battery
- 6 What is the weight of the car battery?
- 7 Frequently Asked Questions
- 8 Conclusion
Why do you need to know the weight of the battery?
When buying a battery, every driver pays attention to parameters such as battery capacity, displacement current, dimensions, and terminal arrangement. The rest of the device data interests him less.
As soon as the battery fails, it must be disposed of, and a little before that, it is usually in a garage or other utility room. Periodically, it must be restarted from one place to another, and here you will notice the weight of the car battery.
To select a new battery in the car, you will need to go to a specialty store or to the car market. Carrying a unit of several kilograms with you all over the territory will be problematic, so you can ask in advance about its weight.
When choosing a new battery, you can use the data from the outer surface of the previous case. It contains most of the necessary information. To determine the exact parameters used the checklists. There are also programs for smartphones that provide this service. Simply enter the brand and capacity of the car battery to find out its weight. The programs are based on the weight of the batteries with electrolyte.
How much should a car battery weigh?
The information about the weight of the battery has its relevance in some cases of car tying. This parameter is involved in the process of identifying the final charges at various nodes. Data is also needed, taking into account the complete filling with electrolyte. Even if the battery has small general parameters, with prolonged exposure it has a significant result.
YOU SHOULD BE AWARE THAT SIGNIFICANT CHANGES IN VEHICLE DESIGN ASSOCIATED WITH THE TRANSFER OF THE STRUCTURALLY INSTALLED BATTERY MUST BE ACCOMPANIED BY A CORRESPONDING CERTIFICATE OF CONFIRMATION.
Table of popular car battery weights
The weight of a car battery will depend on its size. Here I show you a table of car battery weights.
|Vehicle||Sales||BCI Number||Weight (lbs)||Weight (kgs)|
|Ford F Series||909,330||48||42||19.1|
|Toyota Rav 4||427,168||35||40||18.1|
|Jeep Grand Cherokee||224,908||94R||49||22.2|
Why are car batteries heavy?
The main reason is cost. The battery of a 1999 Fiat Punto, supplied a maximum of 100 A (when I tried to estimate the actual short circuit current, about 43 A, but still a lot. Let’s say P=U-I=12V-40A=480W) current, and had a nominal capacity of about 30 Ah (that’s a power of 12V-30Ah = 360Wh). It cost me $25 so, roughly speaking, it’s cheaper to produce than $10.
So, let’s take a type of lithium battery that is mass-produced and therefore cheap. The round cells commonly found in many laptop battery packs are about $3 each (say $1 in production) for about 3Ah (11.1Wh), supplying up to 5A (maximum, don’t do it for too long) at about 3.7V. That says that a single one of these cells can supply 18.5W.
So to reach the estimated 480W of the Fiat Punto 1999 battery, you would need 26 of them. It would cost $26 in production, not counting the dollars spent on control, charging, and protection circuits, to fit them into something rigid and safe, and the fact that the minerals needed to produce some of the rare metal components in lithium batteries are not currently getting cheaper, and equipping cars around the world with them will definitely speed up that market mechanism.
Let’s assume cost scales with capacity. The 26-cell lithium battery has 26-11.1Wh=288.6Wh of power. So we need to scale that by 1.25 to get the same 360Wh as the lead-acid battery.
A cell-like that weighs about 90g. So the weight of the cells is 26-90 g = 2.34 kg. Ok, an average of 15kg, so we save weight by a factor of 6.3 if our housing and electronics are light (they are not – as far as I can tell, you will need a switch-mode power supply to be able to charge them efficiently using your car’s generator, and these consist mainly of a rather bulky copper coil, and maybe some ferrite core that is not exactly light either).
This results in a cost factor of about 3.5 between component A and the alternative component B, with handling disadvantages, lower reliability, and supply chain changes. No wonder the automotive industry is not pushing in that direction.
How to determine the weight of a car battery
Most manufacturers specify this parameter on the battery box, among other information. Different manufacturers, even with the same external parameters, may have different battery masses.
The average battery weight for a low-end car is 12 … 16 kg. This is directly related to the electrical capacity. For large cars, use large batteries by weight.
What is the weight of the car battery?
The weight of the battery depends on its capacity.
The easiest way is to weigh it regularly. In the course of this, the masses of all components are taken into account:
- plastic case
- lead plates and terminals;
- The ground of the full electrolyte.
Vans and trucks use batteries, which sometimes weigh up to 43 kg. For some categories of cars, there is more than one battery. In electric vehicles, manufacturers use much larger batteries, as they are adapted to move the whole car, rather than using them at first.
Frequently Asked Questions
How much does a car battery cost?
Replacing a battery only costs the price of the battery if you install it yourself or if you buy it from an auto parts store that offers free installation, but the answer to how much a car battery costs varies according to several factors, brand, model, type, among others. Most batteries cost between $50 and $120, with $100 on average.
Car Battery Price Variations
- Wet cell batteries, which are generally cheaper than other types of batteries. A basic one will cost you about $50, while the more popular brands tend to cost $100
- A valve-regulated lead-acid battery, or VRLA, has safety valves to help stop fluid loss, a common problem with other types of batteries. This technology increases the price. Many VRLA batteries range from $100 to $250.
- Deep-cycle batteries are more durable, so you should replace them less often. This battery will cost you about $200.
- Lithium-ion batteries are used in high-performance vehicles, such as hybrids and other electric vehicles. This battery is the most expensive, with average prices starting at around $1,000.
How long is the life of an automotive battery?
The average life of a vehicle battery is about 4 years, however, there are cases that can produce early wear of the battery. As in any other element of our vehicle, the responsible and adequate use is what will prolong its duration.
What are the signs that your car needs a new battery?
If your car battery is more than 5 years old, it already needs to be changed. However, if it is not yet that long, there are some signs that will tell you that something is already failing and you need a possible replacement:
- Slow start.
- Egg smell (sulfuric acid leakage).
- Low levels in the liquid.
- Swollen battery.
- If the battery indicator stays on in your dashboard.
Being clear about the weight of your vehicle’s battery is vital to your vehicle’s performance. This will help you the day you need to replace your car battery with a new one. While there are other factors to take into consideration, battery weight is a good place to start.
Hi, I’m Liam. I’m the initiator and writer of this blog. Cars were and will be my first love, and my favorite hobby, that’s why I decided to start this blog and write about my discoveries and techniques to improve my cars or repair them.