24f vs 35 battery – We Compare Both in an Ultimate Honest Guide

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24f vs 35 battery

Ever wondered about the difference between 24f vs 35 battery? Me as well. So I did a deep dive investigation …

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There are many group sizes of battery available, varying in size. We will focus on comparing two of the most popular ones, the 24F vs 35 battery.

When you are buying a battery, choosing the correct battery for your needs can be tricky. You need to know the difference between battery groups and which features to look at.

I have researched 24F and 35 batteries in great detail. And I have compared these two popular groups of batteries to help you choose the best option for you.

And, if you need to choose between the two, 24F is the superior option. Despite being larger and heavier, they are more powerful and have higher CCA and RC ratings.

Group 24F and 35 batteries are both decent options. But they excel in their own unique ways. Group 24F batteries are best for power and cold conditions. And group 35 batteries are better for versatility and warmer conditions.

With that said, let us explore the features of these two groups of batteries in more depth in order to help you make the right purchase. So, keep reading!

24F vs 35 Battery Comparison Table

This table compares the most important features of group 24F and 35 batteries side-by-side.

Model24F Battery35 Battery
Battery Chemistry
Absorbent Glass Mat
Flooded Lead-acid / Absorbent Glass Mat
Battery TypeStarting and Deep CycleStarting and Dual Purpose
Battery Size In Inches (“)10.3” x 6.8” x 8.9”9.1” x 6.9” x 8.9”
Battery Weight In Pounds (LBS)43lbs – 58 lbs16 lbs – 50 lbs
Cold Cranking Amps (CCA)840 CCA – 1050 CCA620 CCA – 900 CCA
Reserve Capacity Rating130 – 160 minutes90 – 130 minutes

24F vs 35 Battery Comparison

Batteries are complex. And the various battery groups differ in lots of ways. To compare group 24F and 35 batteries, we have selected specific features to focus on. With each feature, we have determined which one of the two the winner is.

These include:

  • Battery Chemistry
  • Battery Type
  • Dimension and Weight
  • CCA Rating
  • RC Rating
  • Application

24F vs 35 Battery: Battery Chemistry

One feature in which 24F and 35 batteries differ is battery chemistry. A battery’s chemistry affects how the battery functions. Two common types of battery chemistry are commonly used for these groups:

Group 24F batteries are Absorbent Glass Mat batteries. These batteries have fiberglass mats between the positive and negative lead plates. These fiberglass mats function as sponges. They absorb the electrolyte, creating a large surface area. So the electrolyte can touch the positive and negative plates without flooding the battery.

The Pros And Cons of Absorbent Glass Mat Batteries

The ProsThe Cons
Faster ChargingThese batteries are more expensive
Longer lastingSensitive to over-charging
Vibration resistant
Require less electrolyte to provide power
Require less maintenance
They are recyclable

Some group 35 batteries are also Absorbent Glass Mat batteries. And others are Flooded Lead Acid (FLA) Batteries. FLA Group 35 batteries use lead plates submerged in liquid electrolyte. The electrolyte is free to slosh around in the battery and may leak if the battery is not mounted upright.

The Pros And Cons Of Flooded Lead Acid Batteries

The ProsThe Cons
More affordableHeavy vibrations can damage these batteries
They are great for backup power applications.Must always be mounted upright to prevent spilling

Require regular maintenance

Group 35 is the winner of this feature as it offers buyers the choice between Absorbent Glass Mat batteries and Flooded Lead Acid batteries. Choice is important, but I always go for AGM when there is a choice.


24F vs 35 Battery: Battery Type

Group 24F and 35 batteries are very different types of batteries. But they share one similarity – there are 24F and 35 batteries that are starting batteries.

There are two types of 24F batteries: starting and deep cycle. The function of starting batteries is to crank the engine. Whereas deep-cycle batteries provide sustained power for a longer period of time.

There are also two types of 35 batteries: starting and dual-purpose. Dual-purpose batteries are able to function as both a starting and deep cycle battery.


It is clear that group 35 batteries are the winners. You can buy a dual-purpose group 35 battery that can function as both a starting and deep-cycle battery. If you are unsure or need a dual purpose this is preferable to choosing between one or the other.

24F vs 35 Battery: Dimension And Weight

Another notable difference between group 24F and 35 batteries is their dimension and weight. The weight of the batteries is measured in pounds (lbs). The dimension is measured in inches (“) and includes:

  • Length (l)
  • Width (w)
  • Height (h)

24F batteries are larger and heavier. They are more powerful and comprise more components which add to the weight. The dimensions of most 24F batteries are 10.3″ x 6.8″ x 8.9″. But some are a little larger. The weight of the batteries in this group ranges from 43 – 58 lbs.

The table below provides the dimensions and weights of some different models of 24F batteries.

Models Of 24F BatteriesDimensions In Inches (“)Weight In Pounds (LBS)
Delphi MaxStart AGM Automotive BatteryLength: 11” Width: 8” Height: 7.5”42.5 lbs
Duracell Automotive BatteryLength: 10.3” Width: 6.8” Height: 8.9”44.4 lbs
Interstate MTP-24F BatteryLength: 10.3” Width: 6” Height: 9”44.4 lbs
NORTHSTAR group 24F Pure Lead BatteryLength: 10.9” Width: 6.77” Height: 8.74”58 lbs

35 batteries are smaller and lighter. Manufactured from lighter materials, they are less powerful and have fewer parts. The dimensions of batteries in this group are 9.1” x 6.9” x 8.9”. But, some models are a little larger here as well. The weight of group 35 batteries ranges from 16-50 lbs.

The table below showcases the dimensions and weight of various models of group 35 batteries.

Models Of Group 35 BatteriesDimensions In Inches (“)Weight In Pounds (LBS)
Optima RedTop Group 35 BatteryLength: 9.38” Width: 6.75” Height: 7.69”31.7 lbs
Optima OPT 8040-218 Group 35 Dual Purpose BatteryLength: 9.5” Width: 6.13” Height: 7.5”36.4 lbs
Duralast Gold Battery 35-DLGLength: 9.06” Width: 6.94” Height: 8.88”38.2 lbs
Deka Intimidator Group 35 BatteryLength: 9.56” Width: 6.75” Height: 7.75” 41 lbs

After exploring the dimensions and weight of these two different groups of batteries, it is no doubt that group 35 batteries win, despite 24F batteries being more powerful. They are smaller, lighter, and can fit in a 24F battery tray.


24F vs 35 Battery: CCA Rating

Cold Cranking Amps are also known as the CCA Rating. It is a term used when describing the ability of batteries to start an engine in cold weather. In the battery industry, the CCA rating of a battery is presented in Amps. The higher the Amps of the battery, the higher the CCA rating. This means greater power and superior starting capability on cold mornings.

24F batteries have a high CCA rating of 840 – 1050 Amps. So these batteries have enough power to start an engine in colder temperatures.

The table below displays the CCA rating of various models of 24F batteries.

Models Of Group 24F BatteriesCold Cranking Amps
Duracell Automotive Battery752 amps
Interstate MTP-24F Battery800 amps
NORTHSTAR Group 24F Pure Lead Battery840 amps
Delphi MaxStart AGM Automotive Battery840 amps

The CCA rating of most group 35 batteries ranges between 550 – 740 amps. But there are some models with a higher CCA rating than 740 amps. These include the Optima 8040-218 Dual Purpose battery. That said, this group’s batteries are usually not as powerful. Which is not ideal in cold conditions.

The table below presents the CCA rating of different models of group 35 batteries.

Models Of Group 35 BatteriesCold Cranking Amps
Deka Intimidator Group 35 Battery640 amps
Duralast Gold Battery 35-DLG640 amps
Optima RedTop Group 35 Battery720 amps
Optima OPT 8040-218 Group 35 Dual Purpose Battery775 amps


24F batteries are without a doubt the winner. Their higher CCA rating makes them more powerful to easily start an engine, especially in cold weather conditions.

24F vs 35 Battery: RC Rating

The Reserve Capacity of a battery is the amount of power remaining after the first discharge cycle.

The Reserve Capacity Rating (RC rating) is the time it takes to complete the discharge.

24F batteries have a high RC rating as they have more power than other batteries. So it will take longer to discharge the power and energy of these batteries.

The table below presents the RC rating for different models of group 24F batteries.

Models Of Group 24F BatteriesReserve Capacity Rating (RC)
NORTHSTAR Group 24F Pure Lead Battery160 minutes
Delphi MaxStart AGM Automotive Battery120 minutes
Duracell Automotive Battery120 minutes
Interstate MTP-24F Battery130 minutes

Group 35 batteries have a lower RC rating as they do not have as much power. So it takes less time to discharge the batteries’ energy and power than 24F.

The table below shows the RC rating of selected models of group 35 batteries.

Models Of Group 35 BatteriesReserve Capacity Rating (RC)
Optima RedTop Group 35 Battery90 minutes
Deka Intimidator Group 35 Battery100 minutes
Optima OPT 8040-218 Group 35 Dual Purpose Battery100 minutes
Duralast Gold Battery 35-DLG130 minutes


24F wins. This is because they are more powerful. And the length of time it takes to discharge them is much longer than group 35 batteries.

24F vs 35 Battery: Application

Group 24F and 35 batteries differ in their application. One group is better suited for light-duty use while the other is for heavy-duty use.

Batteries in group 24F perform better in light-duty applications. These batteries are mostly used in:

  • Cars such as Toyota, Honda, and Nissan
  • Motorcycles
  • Boats

Group 35 batteries are made for heavy-duty use. These batteries are commonly used in:

  • SUV’s
  • Trucks
  • Construction machinery
  • Large boats
  • RV’s
  • Security systems


Although these two groups excel in different applications, batteries in group 35 are more versatile in their use than group 24F batteries. Therefore, the winner of this feature is group 35 batteries.

24F vs 35 Battery: The Winner

After comparing group 24F and 35 batteries, the best are the batteries in group 24F. Although they are larger and heavier, they are more powerful, with higher CCA and RC ratings.

But it is not as simple as that – it depends on your own requirements. Both group 24F and 35 batteries excel in their own ways. 24F batteries are an excellent choice for anyone who lives in cold conditions. This is because they need a powerful battery with a high CCA rating.

Group 35 batteries are more suitable if you live in warmer conditions. This is because the CCA rating is not as high as group 24F batteries. They are also great for those seeking a smaller, lightweight, and versatile battery. Their range includes operating their security systems, trucks, lawnmowers, and many more.

It can be challenging to choose the right battery. And Group 24F and 35 batteries differ in many ways, including chemistry, dimension, weight, CCA rating, RC rating, and application. Whether you buy a group 24F or 35 battery, various models of both groups are available to meet your requirements and preferences.

You can simply purchase the 24F or 35 battery of your choice on one of the most popular online stores, AutoZone.

Frequently Asked Questions (FAQs)

Let us explore some questions one might have regarding these two groups of batteries.

Can You Replace Your 24F Battery With A 35 Battery?

One can replace their 24F battery with a 35 battery. However, finding a group 35 replacement battery with either the same CCA rating or slightly higher is important.

What Cars Use Group 35 Batteries?

Group 35 batteries are mostly used in Japanese cars such as Honda, Subaru, Toyota, and Mazda.

Are Group 24 Batteries the Same as Group 24F Batteries?

Group 24 has several subgroup-size batteries, with group 24F being one of them. Group 24F batteries are larger than the other subgroups, such as the 24H, 24R, and 24T.

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Steve Brown


Steve is a gadget enthusiast who's always been intrigued by batteries. The founder and editor of Battery Chargers Info, he's assembled a group of like-minded experts to cover every facet of portable power His aim is to help you learn more about your favorite gadgets and their batteries so you can maximize both their performance and their life.