6 Best Group 31 Battery

The best group 31 battery belongs to a BCI (battery council international) group and is famous for being used as marine batteries. Further, these batteries are being used in many motorhomes, recreational cars, frivolous vehicles, and ordinary automobiles. Moreover, people are using these group 31 batteries due to their splendid starting power compared with conventional batteries.

And whenever someone intends to enhance the electronics of their cars, these best Group 31 batteries are their ultimate choice. Batteries now play a crucial part in cars, and more and more people are in constant search of a powerful battery. Group 31 AGM Batteries with more power are preferred among car owners. Group 31 batteries provide a seamless solution as the single most reliable source for power in freezing temperatures. One can replace its battery easily but choosing the right one among a variety of options is difficult. So, some of the best group 31 battery reviews are mentioned below to help you buy the ideal one.

Top 6 Group 31 Batteries

1-Odyssey 31M-PC2150ST-M Trolling Thunder Marine Battery 

Odyssey 31M-PC2150ST-M Trolling Thunder Marine Battery 

  • Brand Name: Odyssey
  • Weight: 77.8 Pounds
  • Dimension: L x W x H 16.8 x 11.1 x 11.9 inches
  • Voltage: 12 Volts
  • Depth of discharge: 80%
  • Cold Crank Amp (CCA): 1150
  • Battery cell composition: Lead Acid
  • Battery cell type: Group 31 AGM
  • Recharging time: 4 to 6 hrs
  • Operating temp: -40 degrees F to 176 degrees F


The ODYSSEY Marine Dual-Purpose battery comes with an excellent initial starting power and has a profound cycling ability. It can be applied at 400 cycles that have 80 percent of the depth discharge. Furthermore, the group 31 battery is excellent for starting, spinning, or offering power to many onboard electronic fittings. Electronic accessories are standard in boast and recreational motor vehicles; therefore, this Odyssey is the most powerful marine battery.

Odyssey battery offers robust power as it is tightly packed. Its thin lead plates also permit 15 percent more contact surface region. So, these features provide potent power and could quickly start consistently in the cold.

It is mainly designed for heavy-duty vehicles, and its high discharge capability made it the ideal best group 31 battery. It is designed in a way that it can stand for more extended periods halting in harsh climates. And with this feature now, you can easily compete with the low self-discharge rate of low batteries.

The terminals of this group 31 battery are corrosion-resistant, made of thin-plated brass that has a tight seal. Additionally, the battery has a deep cycle that produces gases internally, and it has better safety due to its automated support value.

The operating temperatures of this group 31 battery range from -40 degrees Fahrenheit (-40 degrees Celsius) to 176 degrees Fahrenheit (980 degrees Celsius).

The company offers three years of limited warranty and four years of full replacement warranty for the consumer’s satisfaction. Furthermore, the battery has a good service life to keep you stress-free, save your time, money, as well s annoyance. The service life of this group 31 battery is 3 to 10 years.

  • Fully sealed
  • Free to maintenance
  • Long Life battery
  • Corrosion-resistant depots
  • Remarkable Cold Crank Amp
  • Moderate price
  • Heavier in weight, difficult to lift

An odyssey is an excellent option for emergency vehicles that are consistent in any circumstances. It comprises a high discharge rate of up to 2,150 amperes for only 5 seconds. It can also provide 1,750 amperes for equal to 20 seconds. So, these qualities make this group 31 battery appropriate for a motor vehicle more exciting to start. Odyssey batteries also have a quick recovery and charge ability.

2-Battle Born LiFePO4 Deep Cycle Battery

Battle Born LiFePO4 Deep Cycle Battery

  • Brand Name: Battle Born Batteries
  • Dimension: L x W x H 12.75 x 6.88 x 9 inches
  • Weight: 29 Pounds
  • Voltage: 12 V
  • Battery composition: Lithium-Ion
  • No of cell: 4
  • Cold Cranking Amps or CCA: 850
  • Vehicle service type: Boat, Van, & Trailor
  • Amperage: ‎100 Amps
  • Warranty: 10 year


The battle-born battery is structured in Reno, Nv. It comprises lithium iron phosphate that is great to use in boats, off-grid power structures, or RV. They are applicable in systems that have 12, 48,36, and 24 voltages. It usually packs 140 lb. And the power that makes it last ten times longer.

It is lighter in weight as compared to another group of 31 batteries. These batteries are versatile as there is no acid present in them. These lithium batteries are great for RV, golf cart, marine, and other off-road and grid use and are a perfect alternative for gel batteries.

The battle-born batteries are sustainable as they last for many cycles and are easy to charge and discharge. These batteries are way better than other charging accessories, such as green batteries. Furthermore, this battery does not fall under the low self-discharge rate, and it is a lot different from conventional batteries.

These pure virgin lead plate batteries are safe and easy to operate due to their low-pressure venting system. Further, they have no acid in the battery, are non-toxic, and you can easily carry them anywhere. They can be safely installed in any position. Moreover, lithium iron phosphate-based batteries are safer than other lead-acid batteries as these batteries protect against field faults.

Ten years of warranty is labeled with this battery. So, buy it confidently and get the best possible battery for your vehicle.

  • Lifelong battery
  • No need for the battery box
  • Great storage capacity
  • Easy to mount
  • Lightweight battery
  • It doesn’t work below 25°F.
  • Slightly high price

They have phenomenal working capabilities as they comprise mounting quality, have outstanding durability, and are most cost-efficient. Additionally, due to its cost, lithium iron phosphate-based batteries are the best one, and one should consider this before they buy the batteries.

3-VMAX MR137-120 AGM Sealed Marine AGM Battery

VMAX MR137-120 AGM Sealed Marine AGM Battery

  • Brand Name: VMAXTANKS
  • Dimension: L x W x H 12.9 x 6.8 x 8.7 inches
  • Voltage: 12 V
  • Weight: 50 Pounds
  • Battery composition: Lead Acid & AGM
  • Vehicle service type: Boat, Marine, & RV
  • Cell Number: 6
  • Lifespan: 8 to 10 years
  • Warranty: 1 year


The VMAX has exclusive physical and chemical composite plates. Due to its manufacturing techniques, it is the most durable, reliable, and excellent performing battery. Furthermore, these batteries have an extended life with which they come up with deep discharges. These AGM batteries characteristics make them best among other AGM batteries.

The battery comprises of lead-tin alloy plates control grid that offers an additional performance or services in floating or cycle uses. The performance remains the same because of its lead alloy plates and sealed lead acid after repeated over emissions.

VMAX battery comes with a leak-proof function at any position. Its unique structure and sealing methods have no harmful effects on the capability or maintenance life. Its sealed design makes it non-toxic, non-risky. Additionally, the dry battery makes them non-restricted to surface or marine transport.

This AGM battery offers a consistent structure and design to help reduce the case of distended or plate deforming. These characteristics make the batteries long-lasting with phenomenal performance.

In VMAX, while floating, the group 31 battery does not require the addition of water. Neither needs a particular gravity checking of the electrolyte.

  • Completely sealed
  • Water and heat resistant
  • Maintenance-free group 31 battery
  • Deep cycling features
  • No harmful gases or fumes
  • High voltage required
  • No battery boxes

The VMAX AGM battery has a regulated value system that comes with safety-release faucets. This group 31 battery is resealed automatically; therefore, there can never be any unnecessary buildup of gas in the battery.

4-Optima Batteries 8052-161 D31M Blue Top Battery

Optima Batteries 8052-161 D31M Blue Top Battery

  • Brand Name: Optima
  • Weight: 59.8 Pounds
  • Dimension: L x W x H 12.8 x 6.5 x 9.38 inches
  • Voltage: 12 V
  • Battery cell composition: Lithium-Ion
  • Vehicle service type: Boat & Trailor
  • Cold Cranking Amps: 900 Amps
  • Reserve Capacity: 155 minutes
  • Stud Posts: Stainless Steel 5/16 inches


The optima blue top group 31 battery is used for the initial and deep cycling, and it comes with dual posts. It has stainless steel dual posts. And this structure and design enhance the conductivity and resist the post from getting rusted. Additionally, when a battery has improved conducting, it has a better cycling process in a cold environment.

It got spiral cell technology which can get as much closer to wind power technology to make the battery perfect, so it works effectively. The Spiral Cell technology of the Optima Blue top enhances the conduction in the group 31 battery and offers a quick recharge time.

Due to the different and reliable design, the Optima batteries are one of the best trolling motors. They offer phenomenal performance and strong power and can be easily used on cars and boats that carry loads of electrical fittings.

These Optima batteries have a resisting feature against shock and vibration resistance. It has long-life spam as it is manufactured under restricted environmental circumstances. Lastly, it also guarantees quality and consistency.

  • Durable case
  • Great vibration resistance
  • Quick recharge
  • Suitable for RVs and boats
  • Perfect operations for trolling motors
  • Moderate price
  • It needs maintenance
  • Less storage capacity

The battery has a most durable and reliable case so that it can be equestrian at any position. In addition, due to its great-handling in loads of stoves, fridge-freezers, or RV applications. It is also great for trolling motors and offers a long operating time.

5-Banshee Brand Battery

Banshee Brand Battery

  • Brand Name: Banshee
  • Dimension: L x W x H 13.00 x 6.70 x 9.04 inches
  • Weight: 52.6 Pounds
  • Voltage: 12 volts
  • Internal resistance: 5 m
  • Amp Hours: 105 Ah
  • Reserve Capacity @ 25 Amps: 190
  • Cold Cranking Amps: 800 amps
  • Warranty: 2 years


The banshee brand battery is manufactured to survive with both deep and slow charges and recharges. This group 31 battery can easily replace the Optima group 31 battery as it has excellent recharge abilities.

The main feature of the Banshee marine batteries is that it comes with many proper solidly packed plates. These car battery plates offer great surface space that shows that this is not an AGM battery. And it has more power as compared to standard batteries.

The banshee batteries offer significant cranking engines, and at low temperature, it still shows equal size. Therefore, it has a great capacity to manage 400 discharge cycles that contain 80 percent deep discharge.

Furthermore, the greater the discharge depth, the greater the car battery’s ability to have discharge cycles. One should always prefer the significant depth discharge characteristics before buying any battery.

When this banshee band battery is operated in a low charge state, it has better charge approval and cyclic stability. The battery’s durability makes it worth buying. The battery holder with long life assured appeals to the customers to buy them, as most people’s first requirement is that the starting battery should have a long life period. So, it is one of the best batteries among others.

It is one of the central and vital features of the group 31 battery. And the feature hydrometer shows the conduction rate as well as the charge’s durability.

  • Great for solar applications
  • Easy to carry
  • Hydrometer feature
  • Quick rechargeable
  • A perfect reserve capacity battery
  • Budget-friendly group 31 battery
  • Not an AGM battery
  • It cannot be mounted in every direction.

Additionally, it also offers phenomenal performance for a long-term period. Moreover, including spiral-wound batteries, this Banshee battery provides superior performance to every other brand. As a result of their solidly packed plates, spiral designs do not have the “dead space” between cylinders.

6-Exide XMC-31 MEGACYCLE AGM-200 Sealed Maintenance Free Marine Battery

Exide XMC-31 MEGACYCLE AGM-200 Sealed Maintenance Free Marine Battery

  • Brand Name: Exide
  • Dimension: L x W x H ‎13 x 6.6 x 9.4 inches
  • Weight: 71 Pounds
  • Voltage: 12 volts
  • Cold Cranking Amp at 0 degrees F: 925 Amps
  • Cold Cranking Amp at 32 degrees F: 1110 Amps
  • Terminal: Dual Reserve Capacity: 200 minutes
  • Warranty: 24 month


Exide marine batteries come with Exide technology, and this technology is excellent for recharge and discharge depths. The megacycle marine battery is two times better in the cycling process as compared to deep cycle batteries.

The main feature of the Exide marine group 31 batteries is that it comes with a dual-purpose feature. These batteries offer excellent surface space and functions that make this car battery more vital and critical for marine uses than lead plates other batteries. Further, it is the best alternative AGM battery for cars and a perfect deep cycle battery.

The heavy-duty commercial battery has a most durable and reliable court case so that it can be placed in any position. It is the most durable one as it handles lots of stoves and RV applications. Usually, people prefer this car battery over others due to its durability and long-life spam. It is also offering a long operating schedule.

The Exide marine batteries have a resisting feature against vibration. It is manufactured under local environmental conditions, and it also ensures working quality and consistency. Additionally, the batteries with the resisting feature are the most valuable among other batteries as they do not show any sound that may sometimes irritate people.

They are used as essential boat batteries, motor trolling batteries, and many other applications. These all the applications need strong initial power and deep cycle battery for forbearance. So, power is a vital element for this group 31 battery to work efficiently. The Exide marine is a lithium-ion battery that offers excellent power to the heavy-duty commercial battery life is extended, and it performs well.

  • Resistant to vibrations
  • Performs well even at low temperatures.
  • No corrosion or leakage
  • Dual terminal structure
  • Best for boat or motor trolling
  • A bit pricey
  • Require strong cable and charger

Therefore, the Exide megacycle car battery also has a great capacity to reserve the charges and is known for its features of being a heavy-duty commercial battery.

Buying Guide

There are different types of batteries that including gel batteries. They offer maximum power and have low self-discharge, optimal performance, massive starting power, high reserve capacity, and perfect alternatives for cold temperatures.

If you know what exactly your requirement is, you’ll be able to find the best one for you. Always check features and reviews about the brand and battery type before you choose them. Although due to the wide variety of batteries, it is challenging to research and shop for the best group 31 batteries.


Price plays an important role. Buying a cheap group 31 starting battery does not mean that it is of poor quality. Getting a product that offers a low price tag is possible without being cheated. And few products are reasonably priced. And they offer some of the best quality features when it comes to the overall performance of these batteries.

Types of chargers

Your type of charger can also have an impact on heavy-duty battery life. Using a charger designed for deep-cycle batteries is recommended. Avid car drivers prefer to have an efb battery, as they can be recharged quickly. And fulfill all your power needs. You can purchase a high-amperage fast charger, but they aren’t always the best option. Batteries that are designed to be charged fast can be charged using fast chargers.

It is recommended that use a trickle charger for others since chargers with too high amps can generate more current than the battery can withstand. As a result, the battery becomes hot and overheated. The warranty can be voided if the battery is regularly discharged and the charger is incorrect. Your battery will last for an extended time.


There are many different types of batteries. Some vehicles require specific types of batteries. Spiral plates are sometimes used in batteries, while thin plates in more significant numbers are also available. These two types of batteries have slight differences in their performance. This design is something you should consider right before making your decision.

The body structure is another noteworthy feature of the design. The leak-proof designs are not all of the same quality. Make sure it is constructed from quality materials and that it is durable. A dual-purpose battery has two terminals, whereas a single-purpose battery has one. Choosing the best battery depends on your needs is the most crucial aspect.

Weight & Size

A battery’s size and weight are determined according to the Battery Council International (BCI) specifications. Approximately 13 inches long, 6.8 inches wide, and 9.44 inches high are the ideal dimensions for a group 31 battery. For this reason, you should choose a battery that has dimensions that fits the ones mentioned above.

In line with the size of the compact battery, the weight should be manageable. Lithium-ion batteries possess an ideal weight of up to 30 pounds. In comparison, lead-acid batteries are capable of up to 80 pounds.


Group 31 batteries are available in two types: low maintenance batteries and maintenance-free batteries. Its acid level needs to be checked occasionally to maintain the low maintenance battery, and its caps must be moistened. There is no sealed battery in this type. Therefore, spillage is possible. In addition, maintenance-free plants are sealed, meaning there is no need for water or their acid levels checked. Spills will not damage these plants. Marine engines and heavy vehicles are best suited to the maintenance-free version.

Cold Cranking Amps or CCA

When the temperature is freezing, Cold Cranking Amps, or CCA, measures the battery’s ability to crank the engine. As an engine becomes ice-cold, Cold Cranking Amps measures the battery’s ability to crank. To run an engine, the battery must crank. For this reason, the engine should be able to start in a snowy environment with more cranking power.


A more extended warranty period is unquestionably a sign of a quality product. The best manufacturers are confident in their products’ quality, which is why they provide more extended warranties. Compare the warranty period of the battery with that of similar products before purchasing a group 31 battery.

Types of chargers

Your type of charger can also have an impact on battery backup life. Using a charger designed for deep-cycle batteries is recommended. If you need your battery capacity to be recharged quickly, you can purchase a high-amperage fast charger, but they aren’t always the best option. Batteries that are designed to be charged fast can be charged using fast chargers. It is recommended that use a trickle charger for others since chargers with too high amps can generate more current than the battery can withstand. As a result, the battery holder becomes hot and overheated. The warranty can be voided if the negative battery terminal is disconnected from the charger. Your maintenance-free battery options offer you a long-lasting battery time. The only thing that is required is taking good care of your battery.


Batteries categorized under Group 31 should have excellent reserve capacity power to supply power when needed. A secondary power supply might be needed if the main power switch cuts out. A group, 31 enhanced flooded battery design with a higher reserve capacity, will provide a more extended power supply, thus enabling you to get up and running longer. Therefore, you should choose the car battery with the highest reserve capacity.


1-What is the Group 31 deep cycle battery?

Group 31 deep cycle batteries are used for cycle processes and deep discharges in electric vehicles and many other marines use. They don’t offer solid currents but have great features during discharge at low point currents.

2-How many amp-hours are in a group 31 battery?

The number of amp-hours this best deep cycle battery provides is 95-125 Amp-hours in a group of 31 batteries.

3-How long does it take to charge a group 31 deep cycle battery?

The expected time being taken by these best cold-cranking amps batteries, or you can even call them group 31 deep cycle batteries, takes around 4 to 6 hours to charge.

4-How do you charge a deep-cycle battery while driving?

While driving, the engine runs an alternator, which produces electricity that charges the deep cycle battery. And with this, the reserve capacity for the battery must be profound.

5-What is the difference between Group 24 and Group 31 batteries?

Batteries in groups 24 and 31 differ in many ways, but the most notable difference is their capacity. Group 31 batteries are capable of supplying and reserving power than those in group 24.

6-All Group 31 batteries have the same size?

Not at all. These batteries contain an electrolyte suspension system that allows them to have different sizes. They usually come in sizes from 13- 6.8 inches in total.

Final Verdict

Before buying any battery, always make sure that you have proper knowledge about the battery’s specifications. Different battery brands have various types of batteries.

In this recommendations section for the best group 31 battery, we have selected two of these heavy-duty lithium-ion batteries for you.

  • We have Banshee Brand Battery as the best group 31 battery for your car at the first spot. This battery offers seamless features that include a sealed AGM battery with a deep cycle and dual-purpose battery for automobiles and recreational vehicles.
  • On the second spot, we have Optima Batteries 8052-161 D31M BlueTop Battery as it comes with its unique spiral technology that brings in versatility and offers different and reliable power sources with perfect design and shock resistance features.

You need to focus on a few vital aspects of the battery whenever you make a crucial decision to purchase them. Reserve capacity, marine cranking amps, deep cycles, cycle life, perfect power output, and long service life. Moreover, these best group 31 AGM batteries offer the grid settings for low internal resistance and prevent voltage drop.

So, as mentioned earlier, we hope that the review and details of the 31 group batteries help you choose the battery according to your requirements. So that you buy the one accurately you need.

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