If you have ever conducted research or purchased batteries, you may be familiar with the terms Group 24 and Group 31 deep cycle batteries. These two types of batteries are highly regarded for their reliability and performance. However, how do they compare to each other? LiTime has released Group 24 & Group 31 deep cycle LiFePO4 lithium battery.

In this analysis, we will thoroughly examine the characteristics, advantages, and disadvantages of Group 24 and Group 31 batteries, providing you with a comprehensive understanding of each type. Want to learn more about LiTime batteries comparision? Click here for more details.

A Brief Comparison Table of Lead-Acid Battery

 Understanding Deep Cycle Batteries

Deep cycle batteries are a type of rechargeable battery specifically designed to provide sustained power over long periods of time. They are commonly used in applications that require a steady and consistent flow of electricity, such as in renewable energy systems, boats, RVs, golf carts, and for backup power in off-grid or emergency situations.

The key difference between deep cycle batteries and regular automotive batteries lies in their design and functionality. Deep cycle batteries are built to handle repetitive deep discharges and recharges without significantly degrading their performance, while automotive batteries are primarily designed to provide high bursts of power for starting engines.

Group 24 Batteries: Compact Power for Moderate Applications like Marine, RV

Group 24 batteries are commonly used in moderate power applications such as marine, RV, solar, and backup power systems. They offer long-lasting power with their compact size, making them versatile and easy to install in space-limited areas. Additionally, Group 24 batteries are an affordable option for those on a budget.

However, it's important to note that their capacity and lifespan are lower compared to larger batteries like Group 31. This means that they may not be suitable for power-intensive applications or situations that require continuous power over long periods.

Group 31 Batteries: Powerhouse Performers for Heavy-Duty Applications

On the other hand, Group 31 batteries are widely known for their strong power output and high capacity. They are often utilized in demanding tasks such as trucking, industrial machinery, and large-scale solar systems.

The considerable capacity of Group 31 batteries allows them to provide a continuous and reliable power supply for longer durations. Furthermore, they have a prolonged lifespan, reducing the need for frequent replacement.

However, one drawback is their larger physical size, which can create difficulties in installation, especially in cramped spaces. Additionally, Group 31 batteries tend to be more expensive compared to Group 24 batteries, making them less ideal for situations where cost is a significant factor.

Key Differences Between Group 24 and Group 31 Deep Cycle Batteries

1.Size & Weight

When comparing Group 24 marine and Group 31 batteries, one of the most noticeable distinctions is their size and weight. Group 24 batteries are smaller, typically measuring around 10.25″ (L) x 6.8125″ (W) x 8.875″ (H). This compact size allows for easier handling and installation, particularly in confined spaces. They are also lighter, weighing between 40-50 lbs on average.

On the other hand, Group 31 batteries are larger, with dimensions of approximately 13″ (L) x 6.8125″ (W) x 9.4375″ (H). While this larger size often translates to higher power capacity, it can present challenges during installation, especially in tight spaces. Additionally, Group 31 batteries are heavier, with an average weight of 60-70 lbs.

2.Capacity and Lifespan

Battery capacity is an important consideration as it determines the amount of power the battery can deliver. Group 24 batteries typically have a capacity of 70-85 Ah (Ampere-hours) at a 20-hour rate, which is sufficient for many applications. However, they may not be suitable for devices or systems with high power consumption. These batteries have a lifespan of approximately 3-5 years, but this may be shorter in demanding situations.

In contrast, Group 31 batteries offer higher capacity, usually between 95-125 Ah at a 20-hour rate. This makes them ideal for power-intensive applications or scenarios that require a longer battery life. These batteries can last for around 4-6 years with proper maintenance, although the actual lifespan will depend on how they are used and cared for.

3. Cost

Group 31 batteries tend to be pricier compared to Group 24 batteries due to their larger size, higher capacity, and extended lifespan.

To summarize, the primary differences between Group 24 and Group 31 batteries are as follows:

• Size and Weight: Group 24 batteries are smaller and lighter, making them suitable for applications with limited space. Group 31 batteries, on the other hand, are larger and heavier.
• Cost: Group 31 batteries are generally more expensive due to their larger size, higher capacity, and longer lifespan.
• Capacity and Lifespan: Group 31 batteries offer higher capacity and longer lifespans, making them ideal for heavy-duty applications that require robust power delivery.

LiTime Group 24 & Group 31 Lithium LiFePO4 Batteries Break the Limitation

The differences of group 24 & group 31 battery we mentioned above lies on the traditional AGM or lead-acid battery situation. However, with the advanced group 24 and group 31 LiFePO4 lithium battery come to the markets, things changed.

Take LiTime Group 24 and Group 31 battery as example.

1.Size & Weight

The Group 24 and Group 31 sizes of LiTime batteries are designed to adhere to the widely used BCI battery size standard, making them direct replacements for old AGM batteries.

Additionally, LiTime lithium batteries weigh only 1/3 of AGM lead-acid batteries. The group 31 weights at only 24.25lbs, while the group 24, with smaller size weighing at 21 lbs.

2.Capacity and Lifespan

Both LiTime Group 24 and Group 31 has the capacity of 100Ah, with the nominal voltage at 12.8V.

LiTime insists on using Automotive quality LiFePO4 prismatic cells across its lithium battery portfolio, and the battery is protected from overcharging, over-discharging, over-current, overheating, and short-circuiting by a powerful BMS. These components enable consistent and dependable performance over the battery's 10-year service life. (4000 cycles at 100% DOD, 6000 cycles at 80% DOD, 15,000 cycles at 60% DOD)

3. Cost

Lithium batteries are typically more expensive than AGM or other types of lead-acid battery. However, LiTime provides best budget LiFePO4 lithium batteries, both the group 24 and group 31 batteries are below $300.

Considering its long-term using, upgrading the battery to lithium is a wise investment.

Higher Capacity Group 31 Lithium Battery

If you need more capacity, look at LiTime 12V 100Ah Max LiFePO4 lithium battery. This battery also has the size of group 31.

The LiTime 12.8V 100Ah Max Lithium Battery is a high-performance battery with a built-in 150A BMS. Its advanced battery management system provides protection against over-charging, over-discharging, over-current, over-temperature, and short-circuit risks.

Featuring 2C rate square cells, this battery can discharge at a maximum rate of 1.5C and charge at a rate of 1C, making it suitable for applications that require high currents. Constructed with automotive-grade A cells, it offers higher energy density, stable performance, and a lower self-discharge rate.

With a capacity of 1280Wh, the LiTime 12.8V 100Ah Max battery can support a 1920W load, making it ideal for power-intensive scenarios. It can be connected in parallel and in series (up to 4P4S), allowing for the creation of a larger battery system with a total capacity of 51.2V 400Ah and a maximum energy storage of 20.48kWh. This configuration enables a maximum load power of 30.72kW.

Overall, the LiTime 12.8V 100Ah Max Lithium Battery offers a reliable and high-capacity power solution with advanced safety features for a range of applications requiring efficient and stable power supply.

Group 31 Lithium Battery with Low-Temperature Protection

If you live in the area where winter is long, battery with low-temperature protection is quite significant.

LiTime 12V 100Ah TM LiFePO4 lithium battery is the right one for you.

Deep Cycle Group 24 Lithium Battery with Bluetooth and Low Temp Protection

LiTime has newly released Group 24 Smart lithium battery with bluetooth function and low temperature charging protection.

Summary

In summary, the only difference between LiTime group 24 and group 31 battery is the size and weight, so you can choose them just based on your size needed.

For battery protection, you can also carry a battery box to store and protect.

Can I Connect LiTime Group 24 and Group 31 Battery in Sereis and Parallel?

 Because of the different BMS, it's not recommended to connect LiTime Group 24 and Group 31 batteries in both series and parallel configurations.