Best 10 Group 31 Battery Review 2024

Share the page to

A group 31 battery is a battery with a specific size or dimensions. BCI has set physical dimensions of 13 x 6.8 x 9.44 inches (330x173x240 mm)  to establish a group 31 battery. You can get group 31 batteries in various types and brands that are usable for multipurpose purposes, from cranking engines to small solar power storage. Overall, group 31 battery is widely used worldwide. So, if you are looking for a Group 31 battery, our guide will help you find the best battery in 2024.

Part 1. Group 31 battery overview

A Group 31 battery is prevalent among various applications, including marine, RV, solar power storage, off-grid power stations, and heavy-duty automotive use. The battery has a high capacity, universal size, and robust construction. There are three main types of group 31 batteries:

1. Flooded Lead-Acid Group 31 Battery

It is the traditional group 31 battery type that has liquid electrolytes. A lead-acid battery uses a lead plate submerged in liquid electrolytes. This type of battery needs regular maintenance, such as maintaining electrolyte levels and adding distilled water.

However, lead acid batteries are the most affordable battery in the market.

2. Absorb Glass Mat (AGM) Group 31 Battery

You will get a group 31 battery in AGM technology. It uses fiberglass mats to absorb electrolytes. The battery has a sealed, spill-proof design. So it does not require any maintenance. AGM battery has a longer lifespan compared to traditional lead acid batteries.

On the other hand, the cost of AGM is also higher than that of lead acid batteries.

3. Gel-based Group 31 Battery

A gel-based group 31 battery uses silica-based gel as an electrolyte. Gel batteries look similar to AGM batteries. It has a sealed design, making the battery maintenance free. Another highlighted feature of gel batteries is having better resilience to shocks and vibrations. This means that the battery is good for vehicles and heavy-duty machines. Like AGM batteries gel batteries are also expensive to buy. But the feature can cover the initial buying cost.

4. Lithium-ion Group 31 Battery

Lithium is a new battery technology widely adopted in most appliances. The lithium-based battery comes with several features, including lightweight, long lifespan, and high energy density. However, the initial buying cost for this group 31 battery is more than that of any other battery.

Part 2. Top 10 group 31 battery review 2024

1. Renogy Deep Cycle AGM Battery

    renogy deep cycle agm battery

  • Brand: Renogy
  • Price: $215.99
  • Parameters or Feature
  • Type: AGM
  • Capacity: 100 Ah
  • CCA:750
  • Cycle Life: 500 Cycles (50% DOD)
  • Reserve Capacity: 180 minutes
  • Weight: 63.9 lbs
  • Warranty: 2-year Material and workmanship warranty

Renogy is a well-known battery brand that makes renewable batteries in various technologies. The company is adapting to new changes in its batteries rapidly. Its group 31 battery has a new electrolyte formula that ensures it performs at -4 to 140°F (-20 to 60°). The battery works well even in freezing temperatures without additional temperature compensation. Moreover, a 2-year warranty and a 500-cycle life are reasonable in price-to-feature ratio. You can use this battery in multiple applications like RV, automotive, solar power storage, and home appliances. Overall, in group 31, Renogy can be a good option.

2. Battle Born LiFePO4 Deep Cycle Battery

battle born lifepo4 deep cycle battery

  • Brand: Battle Born
  • Price: $925.00
  • Type: Lithium Iron Phosphate (LiFePO4)
  • Capacity: 100 Ah
  • Cycle Life: 3,000 to 5,000
  • Weight: 31 lbs
  • Internal BMS Technology

The Battle Born is offering a LiFePO4 group 31 battery that is a game-changer in the battery industry. The battery is maintenance-free and has a higher cycle life of up to 5,000, which is 5 to 6 times more than any other battery. Besides this, the battery is incredibly lightweight compared to traditional batteries and provides consistent power without the memory effect. This makes the ideal choice for RV, camper van, boat, trolling motor, industrial, off-grid, and residential backup applications. However, the initial buy cost of this battery is also very high. However, with time, the cost can be recovered because of its long lifespan.

3. Ufine Battery

ufine battery truck battery

    • Brand: Ufine Battery
    • Price: This is a battery manufacturer. The price is affordable. Contact us now for a quote.
    • Battery Type: Lithium-Ion Batteries
    • Voltage: Customizable voltageWarranty: 36 Months
    • Dimensions: Customizable dimensionsUfine Battery is a leading custom lithium battery manufacturer with an excellent reputation and rich experience in the industry.

    Ufine’s diverse product range includes lithium polymer batteries, lithium-ion batteries, 18650 batteries and LiFePO4 batteries, demonstrating Ufine’s specialization in custom battery solutions.

    • High energy density
    • Long cycle life
    • Professional design, fast sample
    • Custom lithium battery, perfect fit
    • Complete certification, safer

    With state-of-the-art manufacturing facilities With scalable production capabilities, Ufine Battery is able to efficiently and reliably produce custom lithium batteries of various sizes, capacities and voltages.

    4. Redodo 12v 100Ah Group 31 Battery

    redondo 12v 100ah group 31 battery

    • Brand: Redondo Power
    • Price: $216
    • Type: LiFePO4
    • Capacity: 100 Ah
    • Active BMS Protection: Yes
    • Weight: 25 lbs
    • Cycle Life: 4,000 at 100% DoD
    • Warranty: 5 years

    Redondo is an emerging battery brand striving hard to get recognized worldwide. It manufactures and sells the battery at the lowest possible rate to give tough time to battery competitors. Redodo offers a 12v 100Ah LiFePO4 technology battery at only $216. It is the group 31 battery usable for RVs, solar power storage, and 30 to 70 lbs thrust trolling motors. The battery is not fit for cranking engines or golf carts. Overall, Redodo is a good option for lithium battery technology as the price is lower than most AGM batteries. You can give a chance to Redodo’s 100Ah group 31 battery.

    5. Odyssey Extreme Group 31 Battery

    odyssey extreme group 31 battery

    • Brand: Odyssey
    • Price: $528.99
    • Type: AGM
    • Capacity: 135 Ah
    • CCA:1150
    • Reserve Current: 220 minutes
    • Weight: 77.8 lbs
    • Cycle Life: 400 at 80% DoD
    • Warranty: 2 years

    The Odyssey features a rugged constructed group 31 battery for multipurposes. It offers a non-spillable AGM design that protects the battery from shock and vibrations that can damage the battery plates. You can use the battery in almost every 12v application, such as camper vans, automotive, and solar power storage. However, this group 31 battery is much more expensive as you can buy two batteries in this price range. The reason for its high cost can be the brand reputation and the 1150 Cold Cranking Amps (CCA). ThereforeTherefore, if you need to crank the heavy-duty engine, this battery is the ideal purchase.

    6. Optima Blue top D31M

    optima blue top d31m    

    • Brand: Optima Batteries
    • Price: $399.99
    • Type: AGM
    • Capacity: 75 Ah
    • CCA:900
    • Reserve Current: 155 minutes
    • Weight: 59.8 lbs
    • Cycle Life: 400 at 80% DoD
    • Warranty: 1 years

    Optima has introduced a Bule top battery using pure lead to extract more power and efficiency. The battery plates are spiral-shaped, which makes them unique from the other batteries in the market. Due to spiral cell technology, the battery has improved its performance and delivery. Moreover, it is 15 times more vibration resistant than a standard flooded group 31 battery. If you want a Group 31 battery for marine usage or a travel trailer, this might be a good option. However, the battery price is slightly high as the battery is only 75Ah. However, spiral cell technology and robust battery design can justify the battery price.

    7. Interstate SRM Group 31 Battery

    interstate srm group 31 battery

    • Brand: Interstate
    • Price: $189.95
    • Type: Flooded
    • Capacity: 98 Ah
    • CCA:675
    • Reserve Current: 210 minutes
    • Weight: 62.7 lbs
    • Cycle Life: 350
    • Warranty: 12 months

    The Interstate SRM-31 is a group 31 battery in lead-acid chemistry. The battery is an affordable option for marine and RV use. However, being a lead acid battery, regular maintenance is required to run the battery for a long time. If you are a budget-conscious person and want a solid, powerful battery, this battery can be your choice. A 12-month free battery replacement warranty ensures you will not need frequent battery replacements but with compulsory regular fluids top-ups.

    8. LiTime 12v 100Ah LiFePO4 Group 31 Battery

    litime 12v 100ah lifepo4 group 31 battery

    • Brand: LiTime
    • Price: $279.99
    • Type: LiFePO4
    • Capacity: 100Ah
    • BMS: 100% Protection
    • Protection Class: IP67 waterproof
    • Weight: 24.25 lbs
    • Cycle Life: 4,000
    • Warranty: 5 years

    LiTime offers a group 31 battery in LiFePO4 technology that is famous for being lightweight, having higher power, and long lifespan. This battery is better than any other lead acid or AGM battery. Because in every aspect, the LiFePO4 battery stands prominently. An active battery management system (BMS) protects the battery from overcharge and deep discharge. Moreover, the battery has an IP67 rating, so you can use it for boats and marine purposes. Even the battery price is more affordable and almost the same as that of AGM batteries. However, this battery is not good for automotive things like cranking or starting engines. Other than that, you can go for LiTime’a group 31 battery.

    9. Relion RB100 Group 31 Battery

    relion rb100 group 31 battery

    • Brand: Relion Battery
    • Price: $899.95
    • Type: LiFePO4
    • Capacity: 100Ah
    • Reserve Current: 240 minutes
    • Weight: 26.4 lbs
    • Cycle Life: 5,000
    • Warranty: 10 years

    Relion is a well-known and premium battery brand. It manufactures and distributes lithium batteries. RB100 is a group 31 battery with LiFePO4 technology. The company provides 10 years over the battery, which means you will not have to worry about frequent battery replacements. Moreover, This lithium iron phosphate no-maintenance battery is the perfect combination of size and capacity to fit many recreational and commercial applications. However, this group 31 battery is expensive, but the initial buying cost can cover the long lifespan of the battery.

    10. Power Queen LiFePO4 Group 31 Battery

    power queen lifepo4 group 31 battery

    • Brand: Power Queen
    • Price: $224.99
    • Type: LiFePO4
    • Capacity: 100Ah
    • Class A Cells
    • Weight: 24.25 lbs
    • Cycle Life: 4,000 to 6,000
    • Warranty: 5 years

    The Queen Battery is designed for high performance and reliability. Group 31 battery size makes it a top choice for marine, RV, and solar applications. This battery is built using lithium iron phosphate technology. It provides maintenance-free operation and excellent durability. With a capacity of 100 Ah, it offers a good balance of power and longevity. The price range of this battery is also much more reasonable.



    Electronic Engineering Writer

    More Articles


    10 Facts About Thin Film Lithium Ion Battery

    Thin film batteries provide a versatile solution. By learning these 10 facts, you can make an informed decision about whether they are right for your devices.

    What Size Leisure Battery Do I Need?

    What size leisure battery do I need? This guide helps campers, motorhome travelers, and sailors choose the right battery size and type for their trips.

    32650 vs. 18650 Battery: Which One is Better?

    In this article, we’ll fully compare the 32650 and 18650 batteries. We’ll also compare them directly to help you decide which one is best for your needs.

    How Long Does a Leisure Battery Last Off-Grid?

    How long does a leisure battery last off-grid? This guide covers leisure battery longevity and tips to maximize lifespan for off-grid adventures.

    32650 Battery Guide: All You Need to Know

    By understanding the features, specifications, and applications of 32650 batteries, you can make informed decisions about which battery is right for you.

    Custom Lithium-ion Battery Manufacturer