CAR BATTERY SIZES
| BCI Group Number | L (inches) | W (inches) | H (inches) | H (mm) |
| Passenger Car and Light Commercial Batte ... | ||||
| 21 | 8-3/16 | 6-13/16 | 8-3/4 | 222 |
| 22F | 9-1/2 | 6-7/8 | 8-5/16 | 211 |
| 22HF | 9-1/2 | 6-7/8 | 9-1/2 | 229 |
Full Answer
What are the standard dimensions of a car battery?
What Are the Different Types of Batteries?
- Lead-acid batteries are the most common kind. They consist of an outer casing that’s filled with battery acid. ...
- Enhanced flooded batteries (EFB) are built in a similar style to lead-acids but give up to double the cyclical stability. ...
- Absorbent glass mat (AGM) batteries are the most expensive models with the best power. ...
What size battery do I need for my car?
What To Know Before You Pick A Battery
- What type of battery do you want?
- What amperage do you need?
- Figure out the number of cells you need to run in a parallel
- How much is crank ampere needed?
What size are car batteries?
You can also use a car battery group size chart which is readily available online. The battery group is specific to the year, make and model of your car. The most common battery group sizes are 24, 24F, 25, 34, 35, 51, 51R, 52, 58, 58R, 59, and 65. Manufacturers tend to favor a particular battery group size.
What is the most common car battery?
The Top 8 Things That Will Drain Your Car Battery
- Human Error. You’ve probably done this at least once in your life – you come home from work, tired and not really thinking, and left the headlights on, didn't ...
- Parasitic Drain. Parasitic drain is due to components in your vehicle continuing to run after the key is turned off. ...
- Faulty Charging. ...
- Defective Alternator. ...
- Extreme Temperature. ...
What are the car battery sizes?
In general, these more-common battery group sizes are 24, 24F, 25, 34, 35, 51, 51R, 52, 58, 58R, 59, and 65. Helpful Hint: Some vehicles can handle a larger battery than was originally installed. A physically larger battery usually has more power and reserve time than a smaller battery.
What do car battery size numbers mean?
It's a measurement of how much energy a battery can deliver continuously for 20 hours at 80 degrees F without falling below 10.5 volts. If a battery is rated at 100 amps/hour, it will supply 100 amp/hours of power, or 5 amps/1 hour.
What do car battery group sizes mean?
Car and Truck Battery Group Size This refers to the battery size that will best fit the physical dimensions, terminal locations and type required for your vehicle.
How do I know what size my battery is?
Step: 1 Check for the group size on your old battery. If the battery that originally came with your car is still in it, look for the group size on a label on the battery. The label may be on the top or on the side of the case. Group sizes are typically a two-digit number and may be followed with a letter.
How do I know if my battery is H7 or H6?
As one can see, H6 and H7 batteries feature exactly the same width (175 mm, 6.89 inches) and height (190 mm, 7.48 inches), but they differ in length by 37 mm (1.47 inches) - H7 batteries are longer, and thus feature larger volume and hence better performances in terms of capacity, cranking Amps, and Reserve Capacity ( ...
Does battery size matter in a car?
Car Battery Sizes Do Matter When it comes to car batteries, size matters. The size of your car battery will make a huge difference in the functionality of your car. A small two-door car is much different from a large work truck, and each vehicle requires a different level of power to turn the engine.
Can I put a different group size battery in my car?
Just as with any part or accessory, using the wrong size battery can lead to a host of problems. While it isn't always necessary to use the OEM brand, you should always replace your battery with the size and output that the manufacturer recommends.
What's the difference between a group 27 and a group 34 battery?
What size is a group 34 battery? The physical dimensions are 10.25 x 6.8125 x 7.875 inches. This translates roughly to 26 x 17 x 20 cm. In terms of actual size, group 34 batteries are smaller than group 27 but are larger than similar group 31.
How important is group size in a battery?
The group size indicates several things. These include the length, width, and height of the battery, as well as the location of each terminal. Whichever group it falls in, it will also be unique to the year, make, and model of the car. The sizing is based on an industry-standard.
What happens if you put the wrong size battery in your car?
Battery specifications If you use the wrong size battery, this could cause changes in the flow of electrical currents, resulting in power surges that can damage the onboard computers or other components.
How do I know my car battery type?
Check the Manufacturer's Label on the Battery. Usually, all the batteries have labels and other information about the battery provided by the manufacturer. Hence, if the label on the battery is still in good condition, you will be easily able to figure out the type of battery.
What are battery group numbers?
BCI have defined Group Numbers to categorize differences between various batteries. The grouping is based on the physical dimension of a battery to best fit your vehicles. It has nothing to do with the capacity of the batteries.
Why do we have specific codes for car batteries?
In the United States, specific codes are assigned to all car battery sizes in order to help determine the precise size and specifications required for any battery replacement. Learn which battery is right for your vehicle.
Can a car battery be compatible with a neighbor's car?
Basically, even if you have a similar size car to that of your neighbor, your car batteries might not be compatible based on their physical dimensions, the positions of their terminals, and their polarity.
Can you use a car battery for a golf cart?
Not all car battery sizes are used solely for cars. All vehicles that require car batteries, including trucks, special commercial utility vehicles and even golf carts, have their own special type and size of battery. Keeping track of the BCI group codes is essential, since no two codes are 100% the same. Even though in some instances similar battery sizes and mounts can be adapted, this is neither recommended nor legal in terms of keeping your vehicle compliant with the necessary automotive standards.
How long do car batteries last?
Car batteries have an average life span of between three to five years, providing it’s the correct battery size for your vehicle; fitting the wrong size can mean unreliability and frequent breakdowns.
What to consider when choosing a new battery?
Along with the battery size you must also pay attention to: The location of the terminals. The type of the terminal (standard post, Japanese post, side terminal, or square bolt-through) The number of cells. The voltage.
What does a car battery do?
Your car battery powers the spark that ignites the fuel that gets you started. It also helps give power to your lights, indicators, navigational system, dash-cams, windscreen wipers and electric windows, along with many other on-board electrical features.
Why is it important to choose the right battery for your car?
Choosing the right battery for your car will help ensure your car performs as it should as well as minimise the risk of costly breakdowns.
What does CCA mean in car battery?
The cold cranking amperage (CCA) The Amp/hour rating. Choosing the wrong size battery can be dangerous and damage your vehicle. Therefore, it is important to seek advice from an expert if you are unsure or need more information.
What does a larger battery mean?
In the case of classic, lead-acid designs, a larger battery can also mean greater performance. More cold cranking amps and a greater reserve capacity is in store, if you select a larger size, while smaller sizes are usually reserved for less demanding vehicles and driving conditions.
Is a V8 battery better than a 4 cylinder?
It just makes sense that a big V8 or diesel in a truck will require a better battery than a little subcompact with a 4-cylinder engine. That’s why there are different standards for each car model and brand. Failing to choose the right size and type of car battery can lead to lower efficiency and much shorter battery life.
What is the most common battery group for electric cars?
The most common battery groups for electric and hybrid cars are GC2 and CG2H, which are a 3-cell battery. However, batteries for electric and hybrid cars also come in 4-cell and 6-cell versions. These include GC8, GC8H, and GC12 battery groups.
What is the best source of information to find the recommended battery group size and specifications?
The best source of information to find the recommended battery group size and specifications is your Owner’s Manual.
What is a BCI 35 battery?
A BCI Group 35 battery is a standard battery size for a wide range of cars and small trucks. It has a top-post design and fits popular models, including Toyota, Nissan, KIA, Ford, and other models. It is the recommended Honda Accord and CR-V battery for many models.
What does BCI stand for in batteries?
These numbers and letters are the BCI group size of the battery. BCI stands for Battery Council International.
What is BCI in car?
The BCI designations include the group definition, dimensions, measurements, types, sizes, and other characteristics. The battery conversions chart can help you to cross-reference battery sizes, but it is also useful to understand the various group sizes that are designated for different types of vehicles.
What happens if you put a bigger battery in your car?
On the other end of the spectrum, if you put a battery that is larger than recommended, it can cause significant damage to your car. The larger battery can cause spikes and power surges that can damage your electronics, including your onboard computer.
What is universal battery number?
A universal battery number is simply another battery naming system. They are still in different sizes and shapes. These numbers usually begin with UB followed by a sequence of five numbers and another set of five letters and numbers separated by a hyphen.
What are the different types of car batteries?
Different Types of Car Battery. There are two basic types of battery which are called wet cell and VRLA batteries. It is important that you choose the right type for your car as well as the correct group size. Wet cell car batteries. These are also sometimes called flooded batteries and are a category of lead acid battery.
What is the most common battery group size?
The most common battery group sizes are 24, 24F, 25, 34, 35, 51, 51R, 52, 58, 58R, 59, and 65. Manufacturers tend to favor a particular battery group size. Many General Motors vehicles in the US have side-post batteries. These do not have battery posts at the top, instead there are cable ends that screw into the side.
Why is my car battery flat?
Continued. A flat battery is a frustrating and inconvenient automotive issue. If you find that your battery is often flat when you go to start your car in the morning, it could be because you need a new battery.
Why are battery sizes important?
Because batteries are standard sizes, it makes it easier for vehicle manufacturers to design the engine compartments. The battery group size is a simple industry standard so it will be easier for you to find the right battery when you need to replace it.
What type of battery is used to start a car?
The first is an SLI (starting, lighting, ignition) battery which will start your car with a short burst of energy and also powers the lights and ignition. However, once the car has started, the power that it needs to keep running is provided by the alternator. Most cars have this type of battery.
What is flooded battery?
These are also sometimes called flooded batteries and are a category of lead acid battery. Inside this type of battery, there is a liquid electrolyte so they can be recharged. This is done when the engine is running. If you have this battery in your car, you will need to check on the level of the diluted acid.
What is the group size of a battery?
The group sizes are usually 70, 74, 75 and 78. In contrast, European vehicle manufacturers such as Audi and Mercedes have batteries where the top posts are recessed. This results in the top of the battery posts being the same height as the battery. Also, there is often a specialized ventilation system on the battery.