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What is a group 34 battery

Author

Andrew Mccoy

Updated on April 16, 2026

The “34” number refers to a battery of specific dimensions with top terminals, while a “78” number also refers to a battery of specific dimensions with side terminals. The physical dimensions of these two batteries, at least relative to their size without terminals, happens to be identical.

What does 34 mean on a battery?

The “34” number refers to a battery of specific dimensions with top terminals, while a “78” number also refers to a battery of specific dimensions with side terminals. The physical dimensions of these two batteries, at least relative to their size without terminals, happens to be identical.

What cars use group 34R battery?

This Duracell Ultra Platinum BCI Group 34R AGM car battery is designed to meet or exceed the OEM specifications as a replacement battery for your vehicle. This 12 volt car battery is commonly used in car brands like Ford, Mercedes, Toyota and many others.

What is the difference between Group 31 and 34 batteries?

Their group 31 is a 96 AH battery and the group 34 is a 62 AH battery. I might eventually add a solar panel to supplement this setup and provide additional power for other accessories/gadgets when camped for longer periods of time.

What is the difference between a 24f and 34R battery?

#1 Difference: Physical Size – Dimensions The only real difference between these two particular batteries is that the 24 is slightly taller than the 34.

What are the battery group 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.

How big is a size 34 battery?

BCI group 34 batteries physical dimensions are (L x W x H) 10.25 x 6.8125 x 7.875 inches (26 x 17.3 x 20 cm), with the weight varying between 37 and 51 pounds. BCI group 34 batteries are very similar in size to BCI group 24 batteries (10.25 x 6.8125 x 8.875) – group 24 batteries are 1 inch taller.

What are the dimensions of a group 35 battery?

Again, the physical dimensions of Group 35 batteries are approximately (LxWxH) 9 1/16 x 6 7/8 x 8 7/8 inches (9.0625 x 6.875 x 8.875 inches, 230 x 175 x 225 mm) – we have to emphasize this since many group 35 batteries are slightly longer than ‘standard maximum length’.

What does group size mean on a RV battery?

The group size is simply the physical dimensions of the battery housing as set by the BCI (Battery Council International). The size can increase in either length, width, or height, so it’s important to consult the charts.

What group size is a golf cart battery?

The majority of golf carts driven today use a 6-volt golf cart battery, which is why most online searches for golf cart batteries tend to take you straight to 6v options. Of course, as any golf cart owner familiar with using a 6-volt battery knows, there are reasons why people want to find another option.

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What does AGM stand for?

The short answer is that AGM stands for “Absorbed Glass Mat,” which is a specific type of lead-acid battery. OPTIMA Batteries are considered SPIRALCELL AGM batteries. However, that doesn’t mean the AGM setting on a charger is necessarily the correct setting to use on OPTIMA batteries or other batteries.

What is an AGM battery?

AGM or Absorbent Glass Mat is an advanced lead-acid battery that provides superior power to support the higher electrical demands of today’s vehicles and start-stop applications. AGM batteries are extremely resistant to vibration, are totally sealed, nonspillable and maintenance-free.

What is the most commonly used automotive battery?

Conventional batteries such as lead-acid batteries are the most common types of battery. This technology is often referred to as SLI, which relates to the main functions of a vehicle battery: Starting, Lighting, and Ignition.

What is Group 24 AGM battery?

AGM group 24 batteries are spill-proof, maintenance-free batteries that can withstand many deep discharge cycles, although it is recommended not to discharge them below 50% DoD in order to prolong their operating life.

How long will a group 24 battery last?

U134 to 40 Amp hours12 voltsGroup 2470-85 Amp hours12 voltsGroup 2785-105 Amp hours12 volts

What's a group 24 battery?

BCI Group 24 batteries are mostly general-purpose batteries commonly found in large UPS systems, medical and security systems, wheelchairs, in vehicles, industrial applications, etc. They are rarely used as starting/cranking batteries – more commonly they are used in deep cycle standby/float applications.

What is the difference in battery groups?

In general, a group size with a higher number has more amp hours than lower values. This fact translates to more power in your battery as the day goes on.

Where is the group size on a car battery?

Look directly on the battery you’re replacing. Particularly if it’s original equipment, you can usually find the group size printed on the top or side labeling. You’ll also find other information here, like cold-cranking amps and reserve charge, that can be helpful as you shop for your replacement.

What car uses a Group 35 battery?

The Group-35 Battery is also called Q85, and can also work for Group-24; it is just 1-inch less wide. It is often found in Japanese Cars and Trucks from Toyota, Nissan, Mitsubishi, Subaru, Acura, and in some older American Cars.

What does DIN mean on a battery?

Used to identify battery types, the DIN (German Industrial Standard) Part Number system is traditionally used within Europe, but has now been replaced by ETN number system.

How many CCA do I need?

What Size Battery Do I Really Need? A battery should be big enough to allow reliable cold starting. The standard recommendation is a battery with at least one Cold Cranking Amp (CCA) for every cubic inch of engine displacement (two for diesels).

How do I know what size battery I need?

  1. 1) Estimated running time. Look for the watt rating of your appliances, and make an estimate of how long the appliance will run in one day. …
  2. 2) Calculate the watt hours for each appliance. …
  3. 3) Total power consumption. …
  4. 4) Convert to amp hours.

What do group numbers mean on deep cycle batteries?

You may have heard common terms like a “group 24 battery” or “type 27 marine battery.” These numbers are referring to the Battery Council International, or BCI, Group Number of the battery. … For deep cycle batteries, the larger the case size the more capacity the battery will usually have.

What's the difference between a group 24 and a group 35 battery?

With these two batteries, the difference in size is relatively minute. Group 24F batteries measure 10.3 x 6.8 x 8.9, whereas the Group 35 batteries measure 9.1 x 6.9 x 8.9. … So if you were to buy a Group 35 battery, you might need to make some adjustments to the battery box to ensure that it cannot move around.

How many amp hours is a group 35 battery?

Group 35 Battery Replacements Generally speaking these batteries will range between 44 amp hour (Ah) and 60Ah, 550 cold cranking amps (CCA) and 740 CCA and 90 reserve capacity (RC) and 115 RC. It depends on whether it is a thick plate deep cycle or thin plate stop/start battery or a dual purpose combination.

What does BCI mean on a battery?

This refers to the battery size that will best fit the physical dimensions, terminal locations and type required for your vehicle. The Battery Council International (BCI) assigns numbers and letters for each battery group size. Group size is typically based on your vehicle’s make, model and engine type.

Can I put 3 12 volt batteries in a golf cart?

Golf carts offer the benefit of running off rechargeable batteries instead of burning fossil fuel, but the batteries eventually require replacement. If you have a 36-volt golf cart that runs on six 6-volt batteries, you can replace them with three 12-volt batteries, which often are easier to find.

Can you use 4 12 volt batteries in a golf cart?

In a 48 volt golf cart you can use 4 12 volt batteries in place of 6 8 volt batteries. These need to be connected in series (negative to positive) in order to create 48 volts from the battery pack.

How many amp hours is a 48V golf cart?

A 48 volt golf cart, depending on its amperage can go from 12 miles to 35 miles. Below are the approximate distances that golf carts can travel according to the battery system it utilizes using a capacity rate of 20 Amp-Hour.

How can you tell if a battery is AGM?

Look at the top of the Battery. If the label is not in good condition, and not helping you much, you can know about the type of battery by looking at its design and construction. Basically, an AGM battery will always have a flat top, and only the negative and positive terminals of the battery will be sticking out.

What is better AGM or lithium battery?

Lifespan: All batteries degrade over time, but lithium-ion batteries consistently outlast AGM. Factors like a larger depth of discharge make lithium-ion batteries more resilient and help these batteries go up to six times the life cycles of AGM alternatives.