Hi guys, welcome to the new post. In this post, we will discuss What is a Group 24 Battery? Dimensions, features, and recommendations. Group 24 batteries are general-purpose batteries used in large UPS systems, medical and security systems, vehicles, and industries. It is used for starting cranking batteries and is used for deep cycle standby/float applications. In this post, we will cover the details of the Group 24 battery, its features, dimensions, and some related parameters. So let’s get started with What is a Group 24 Battery?
What is a Group 24 battery?
A Group 24 battery is a lead-acid battery used in vehicles and marine uses. Group 24 batteries work as deep-cycle batteries, then starting uses where they start the engine. Their standard dimensions are 10.5” L x 6.1875” W by 8.875” high.
These batteries also have subcategories with minor differences in dimensions. That are 24F, 24H, 24R, and 24T.
The group of 24 batteries is an automotive battery that is used in vehicles, especially trucks and cars.
What Does Group Size Mean on a Battery?
Group size is a classification system that determines the battery’s physical dimensions and terminal points, defining compatibility with any vehicle or instrument.
This industry-wide code-made organization, like Battery Council International (BCI), for vehicles and marine batteries, makes sure support and interchangeability for different manufacturers. Understanding the battery group size is important in choosing an accurate battery for powering the devices.
Features of Group 24 Batteries
- Voltage: 12V
- Capacity: 50-100 Ah
- Average weight: 50-60 lbs
- Dimensions: 10″ x 6 7/8″ x 8 15/16″
- Terminal type: SAE/GM posts
Capacity
Battery capacity defines energy stored and delivered by the battery. Group 24 batteries have different ranges of capacity that are about 70 amp-hours (Ah) to 85 Ah or more. High capacity provides longer working power.
Reserve Capacity (RC)
Reserve capacity measures how long the battery can provide power. It shows that the battery has featues to handle the sustained load without being recharged. The Group 24 battery comes with a reserve capacity of 100 minutes to 150 minutes or more.
Cold Cranking Amps (CCA)
CCA is a rating that shows battery features to start the engine in cold conditions. It measures the maximum current the battery can provide for zero degrees Fahrenheit (-18 degrees Celsius) for 30 seconds while sustaining the least voltage. The CCA rating of the group 24 battery is about 500 and 800 amps.
Cycle Life
The cycle life of the battery defines the number of charges and discharge cycles that can be faced before reducing the capacity. Group 24 batteries made for deep cycle projects normally have good cycle life and provide repeated sharing and discharging without losses of power.
Maintenance
They needed different maintenance types; conventional flooded lead acid batteries needed periodic maintenance, like checking the electrolyte level. Sealed lead acid batteries like AGM and gel batteries do not need maintenance and do not use water or electrolytes.
Applications
This battery is used in boats, automotive vehicles, recreational vehicles (RVs), and smaller solar power systems. It is also used for starting and deep cycle applications.
Construction
This battery is made with the use of lead-acid technology. It has lead plates dipped in an electrolyte solution. But there is also lithium-ion used for group 24 battery
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How to Maintain Group 24 Batteries
- Inspect the battery terminals and cable regularly to find corrosion. If there is any fault, clean with a mixture of baking soda and water. Use a wire brush to remove corrosion, and rinse with clean water.
- If the battery has removable caps, check the electrolyte level. Make sure it is over the plates; use distilled water if needed; and avoid overfilling the battery.
- Group 24 batteries work well if they are not deeply discharged. Try to keep the battery charged over fifty percent to increase working life. Try to use a battery maintainer or charger if the battery gets discharged.
- Use the compatible charger for battery charging that is according to battery voltage and charging need.
- If there is a need to store the battery for a long time, put it in a dry and cool place. High or low-temperature conditions affect the operation of the battery.
- If there is any damage or leakage on the battery, change it.
What Are the Pros of a Group 24 Battery?
Group 24 batteries offer a long-lasting and stable supply that is good for RVs, boats, and mobile systems.
It is smaller in size than a 100AH battery and can easily fit in more space and work well in small areas or uses that do not need stored power.
Are There Lithium-Ion Group 24 Batteries?
Yes, for those who needed a group 24 supported battery and need to upgrade to lithium-ion. These batteries have a capacity of 50Ah and a 75Ah size.
This battery follows the lead-acid battery industry. Lithium battery companies very well know people will upgrade to conventional-size batteries, so they make batteries that are the same size as lead-acid batteries.
What Vehicles Use Group 24 Batteries?
Group 24 batteries are used in vehicles that need more power supply than normal starting batteries. These vehicles are RVs, buses, and trailers, where they work as house batteries.
They can also be used in boats of the same function.
What Is the Difference Between a Group 24 and Group 34 Battery?
The basic differences between a Group 24 and Group 34 battery are explained here
| Feature | Group 24 | Group 34 |
|---|---|---|
| dimensions | 11″ x 6.875″ x 9.5″ | 10.06″ x 6.88″ x 7.94″ |
| Weight | 46.3 lbs | 43.5 lbs |
| Cold-cranking amps (CCA) | 550 CCA | 750 CCA |
| Marine cranking amps (MCA) | 690 MCA | 870 MCA |
| Reserve capacity | 140 minutes | 120 minutes |
| Battery type | Flooded lead-acid | Absorbed glass mat (AGM) |
| Lead purity | Recycled lead | 99.99% pure virgin lead |
| Warranty | Varies | 2-year free-replacement warranty |
| Cost | Less expensive | More expensive |
24 batteries’ main dimensions are (L x W x H) 10.25 x 6.8125 x 8.875 inches (260 x 173 x 225 mm), but there are other subgroups also exist
| Group Size | L x W x H (mm) |
| 24 | 260 x 173 x 225 |
| 24F | 273 x 173 x 229 |
| 24H | 260 x 173 x 238 |
| 24R | 260 x 173 x 229 |
| 24T | 260 x 173 x 248 |
How To Charge Group 24 Batteries
The group 24 batteries can recharged with the use of a 15 to 20 ampere battery charger range. But for avoiding overstressing batteries 10 ampere battery charger is good to use.
Such if a 12 Volt 75Ah battery is discharged to 80 percent DoD (20% Soc), it needs ~60Ah of charge to be recharged.
The 10-ampere battery charger can recharge the battery in 6.5-7 hours.
Does Battery Group Size Matter On A Battery?
Group size is based on vehicle manufacture, model, and engine type. However, some vehicles can handle batteries from more than one group size. It is important to use battery-supported vehicles.
Group 24 Batteries VS Other Battery Groups Size
| Group Size | LxWxH (inches) |
| Group 24 Batteries | 10.25 x 6.8125 x 8.875 |
| Group 27 Batteries | 12.0625 x 6.8125 x 8.875 |
| Group 31 Batteries | 13 x 6.8125 x 9.4375 |
| Group 34 Batteries | 10.25 x 6.8125 x 7.875 |
| Group 35 Batteries | 9.0625 x 6.875 x 8.875 |
| Group 51 and 51R Batteries | 9.374 x 5.0625 x 8.8125 |
| Group 65 Batteries | 12.0625 x 7.5 x 7.5625 |
| Group 78 Batteries | 10.25 x 7.0625 x 7.3125 |
What Are The Most Common Group 24 Battery Specs?
The commonly used Group 24 battery specs are:
| Dimensions | Terminals | Amp-hour rating | Reserve Capacity | Cold-cranking amps |
|---|---|---|---|---|
| 10.25 x 6.8125 x 8.875 inches (260 x 173 x 225 mm) | Top-post | 75-100 Ah | 140-180 minutes | 500-840 CCA |
Group 24 batteries’ common uses are
- Solar and off-grid systems
- RVs and boats
- Medical equipment
- UPS systems
- Electric vehicles
Does Group 24 Battery Have Any Drawbacks?
The main disadvantage is that their size ana heavy weight as compared to other batteries.
it can make it difficult to connect and handle. With that group, 24 batteries can have lower capacity than larger battery sizes so not provide high power or do not have a working life.
Comparison between group 24 battery Vs group 27 battery
Group 24 Battery
- Their chemistry is AGM, SLA, Gel, Flooded, Lithium
- Dimensions are 10.25 x 6.8125 x 8.875 inches (260 x 173 x 225 mm)
- It is used in wheelchairs, medical Backup storage, UPS, and security systems, industrial, starting or cranking
- It can interchagneable
Group 27 Battery
- Their chemistry is AGM, SLA, Gel, Flooded, Lithium
- Dimensions are 12.0625 x 6.8125 x 8.875 inches (306 x 173 x 225 mm)
- It is used in automotive, marine, Off-grid, RVs, starting or cranking
- Group 27 has a higher output current, more power, and a longer life
Are Group 24 batteries and Group 27 Batteries interchangeable?
Group 27 batteries are not larger than group 24 batteries. But its power is higher. If there is no main problem due to the size of the devices where it has to be put, they can be interchangeable.
Group 24 AGM battery
| Brand | Model | Amp-hour rating | CCA rating | Warranty years |
|---|---|---|---|---|
| Interstate Batteries | UB12750 | 75 Ah | 1000 | 3 |
| Power-Sonic | PS12750 | 75 Ah | 850 | 2 |
| Lifeline | GPL-24T | 75 Ah | 840 | 3 |
| Trojan | T-1224 | 75 Ah | 890 | 3 |
group 24 car battery
| Brand | Model | Amp-hour rating | CCA rating | Warranty |
|---|---|---|---|---|
| Interstate Batteries | 24M | 75 Ah | 840 CCA | 3 |
| Optima | D24 | 75 Ah | 700 CCA | 3 |
| Odyssey | PC2400 | 80 Ah | 850 CCA | 3 |
| NAPA | NAPA Legend Series | 70 Ah | 750 CCA | 2-y |
What to check before buying a Group 24 battery vs. Group 27 battery?
Finding the group size of the battery during buying for replacement is important since certain groups will define the dimensions of the battery, battery terminals, and capacitors.
That group will determine which type of other accessories, like battery inverters and chargers, have to be used. Such as 24 group batteries, true deep cycle batteries are a common battery size used for RVs. It is mostly used with solar panels and wind turbines for providing power.
Are Group 24 batteries and Group 27 batteries interchangeable?
All batteries can’t fit in any product. So check their size. After finding the accurate size check, it fits in your vehicle.
With that, there is need to ensure the battery has features to deliver power to the car. For this, know which Amepre battery will provide good operation.
Group 27 batteries are a larger size than Group 24. But it has a good power feature. If size is not an issue, they can interchange
Which is better? Group 24 battery vs. group 27 battery
It is based on applications which one is better. The output current of the group 27 battery is higher than the group 24 battery. SO Group 27 batteries are used for heavy industries and machines.
It offers high power and works for a longer duration. If there is a need for a battery that works longer, the 27 group is best.
Group 24 batteries are not best to use for high-current uses. But some types have ratings of 500 to 840 amps for CCA and 625 to 100 ampers for MCA. that help to be used as starting batteries for small gas or diesel engines. It can be used in small devices that use less power, like motorcycles or snowmobiles.
Differences Between a Group 24 and Group 31 Battery?
Group 24
The basic difference between Group 24 and Group 31 batteries is their physical size and capacity.
Group 24 is small in size and has less capacity than Group 31 batteries.
Group 24 batteries are used in different applications like automotive, marine, and recreational vehicles. Their dimensions are 10.25 inches in length, 6.81 inches in width, and 9.43 inches in height. These batteries have a capacity of about 70-85 amp-hours (Ah) and have features to deliver enough power for engine starting and auxiliary functions.
Group 31
Group 31 is larger and has a higher capacity than Group 24 batteries. It is used in heavy-duty uses like trucks, buses, and larger vehicles. Their dimensions are 13 inches in length, 6.75 inches in width, and 9.44 inches in height. and has a capacity of about 95 to 125 Ah or higher.
Are Group 24 batteries compatible with solar power systems?
The group 24 batteries supported the solar power system since they have features to store energy produced through solar panels and offer power when required.
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Faqs
What are the dimensions of a Group 24/27 battery?
Group 24 battery dimensions are 10.25 x 6.8125 x 8.875 inches, or 260 x 173 x 225 mm.
Group 27 has 12.0625 x 6.8125 x 8.875 inches, or 306 x 173 x 225 mm.
What is the capacity of 24 batteries?
Group 24 batteries have different capacities, ranging from 70 amp-hours (Ah) to 85 Ah or more. Higher-capacity batteries work longer.
What does the battery group size mean?
A battery group size is an industry parameter for a battery that shows the actual, physical size of a car battery. Height, width, and length with polarity are shown.
What is the difference between group sizes 24 and 34?
| Group | Length (in) | Width (in) | Height (in) |
|---|---|---|---|
| Group 24 | 11 | 6.875 | 9.5 |
| Group 34 | 10.06 | 6.88 | 7.94 |
What does group size 24 mean?
Group 24 batteries are the standard model, which is 10.5 cmL x 6.1875″W x 8.875″H. A certain size battery is used in vehicles, backup power systems, and medical systems. The Group 24 batteries are used for deep-cycle batteries, as compared to starting the engine.
What are the sizes of Group 24?
There are 3 main sizes of group 24 batteries:
| Group | Length (inches) | Width (inches) | Height (inches) |
|---|---|---|---|
| Group 24F | 10.25 | 6.8125 | 8.875 |
| Group 24T | 10.25 | 6.8125 | 9.875 |
| Group 24R | 10.25 | 7.8125 | 8.875 |
What does the size of each group mean?
4 features define battery as a certain group size. First is the battery size and dimensions. The battery in certain group sizes must have the same physical size to ensure accurate fitment in the vehicle.
What is the difference between a group 24 and group 35 battery?
The groups 24 and 27 batteries are used in older American cars and some Hondas, GMs, and also for boats. Group 35 used in place of group 24, which is one niche shorter in left to right dimensions.
