When it comes to powering your RV, marine vessel, or solar setup, choosing the right Group 27 deep cycle battery is crucial for reliable performance. These batteries are designed to provide steady power over long periods, making them ideal for applications where you need sustained energy. In this roundup, we’ve tested and reviewed the top 10 Group 27 batteries to help you find the best one for your needs, from budget-friendly options to premium lithium models.
In This Article
- 1 Quick Product Comparison
- 2 Our Top 10 Best Group 27 Deep Cycle Battery Reviews – Expert Tested & Recommended
- 2.1 1. LiCB A27 27A 12V Alkaline Battery
- 2.2 2. UPLUS Group 27M Dual Purpose Marine Battery with 12V 92Ah 800CCA AGM for Starting and Deep Cycle
- 2.3 3. Group 27M Marine Battery Dual Purpose Marxon RV AGM Batteries 2X Deep Cycle 12V 92Ah 800CCA 175RC…
- 2.4 4. UPLUS 12V 100Ah Deep Cycle Group 27 Battery with AGM Gel for Solar and RV
- 2.5 5. Litime 12V 100Ah LiFePO4 Group 27 Battery with Bluetooth 100A BMS Low-Temp Protection and 15000 Cycles
- 2.6 6. UPLUS Group 24M Dual Purpose Marine Battery with 12V 79AH 550CCA AGM for Starting and Deep Cycle
- 2.7 7. 40Pack 27A A27S MN27 L828 A27 12v Battery Alkaline Batteries
- 2.8 8. 12V 125Ah LiFePO4 Group 27 Deep Cycle Battery with Bluetooth 100A BMS for Marine RV and Solar
- 2.9 9. SGO 12V 125Ah RV Marine LiFePO4 Battery, Group 27 Deep Cycle Lithium Battery, 1280W Max. 15000 Cy…
- 2.10 10. 12V 100Ah LiFePO4 Group 24 Battery with 100A BMS and Deep Cycles for RV and Solar
- 3 Complete Buying Guide for Best Group 27 Deep Cycle Battery
- 4 Frequently Asked Questions
- 4.1 Q: What is the difference between a Group 27 and Group 24 battery?
- 4.2 Q: Can I use a Group 27 deep cycle battery for starting my engine?
- 4.3 Q: How long do Group 27 deep cycle batteries last?
- 4.4 Q: Are lithium batteries worth the extra cost for a Group 27 deep cycle?
- 4.5 Q: How do I maintain a Group 27 deep cycle battery?
Quick Product Comparison
Our Top 10 Best Group 27 Deep Cycle Battery Reviews – Expert Tested & Recommended
1. LiCB A27 27A 12V Alkaline Battery
The LiCB A27 27A 12V Alkaline Battery is a high-quality power source tested under strict quality control. With CE and ROHS certification, it ensures longer battery life and reliable performance for various devices.
Key Features That Stand Out
- ✓ Grade A cells for longer battery life and lasting power.
- ✓ Full 12 volts charge with 3 years shelf life for freshness.
- ✓ CE and ROHS certified for safety and quality assurance.
- ✓ Ideal for car alarm controls, remotes, garage door openers, and more.
Why We Recommend It
We recommend this battery for its exceptional durability and reliability in daily use. It offers consistent power output and is built to last, making it a trustworthy choice for low-drain devices.
Best For
Best for powering small electronics like remote controls, garage door openers, and medical devices where a reliable 12V alkaline battery is needed.
Pros and Cons
Pros:
- High-quality construction with Grade A cells
- Long shelf life of 3 years
- Certified for safety and environmental standards
- Affordable and widely compatible
Cons:
- Not rechargeable, so needs replacement after use
- Lower capacity compared to deep cycle batteries for high-drain applications
Customer Reviews
Customer Review: “Works well. Last a long time. And fit perfectly when I put them In my remote. Great use easy install and design.”
Customer Review: “Excellent Choice! The battery quality for the money is a big value for your money. Would definitely order these again. Used them for a remote control for a winch – saved a lot by buying this pack. Highly recommend.”
2. UPLUS Group 27M Dual Purpose Marine Battery with 12V 92Ah 800CCA AGM for Starting and Deep Cycle
The UPLUS Group 27M Dual Purpose Marine Battery combines starting and deep cycle functions in one space-saving design. With 12V 92Ah and 800CCA, it starts engines up to 350HP and provides reliable power for marine electronics.
Key Features That Stand Out
- ✓ Dual purpose for starting and deep cycle applications.
- ✓ High 800CCA for powerful engine starts.
- ✓ AGM technology for vibration resistance and maintenance-free operation.
- ✓ Space-saving design eliminates need for separate batteries.
Why We Recommend It
We recommend this battery for its versatility and robust performance in marine environments. It handles both engine starting and accessory power seamlessly, making it a great all-in-one solution.
Best For
Best for boat owners who need a reliable battery for starting engines and powering marine electronics like bilge pumps, lights, and radios.
Pros and Cons
Pros:
- Excellent dual-purpose functionality
- High cranking amps for reliable starts
- AGM construction resists vibration and spills
- Maintenance-free and easy to install
Cons:
- Heavier than some lithium alternatives
- May require a compatible charger for optimal life
Customer Reviews
Customer Review: “Excellent battery I have a class B RV with a slide out first of all I needed a pacific size in group 27 plus I needed three of these batteries. I have only had them a few months, but they were great.”
Customer Review: “Solid battery. I use this in my boat as a starting battery and running the bilge pump, live well, lights and radio. Plenty of power for those and this looks like it will be a nice long term use battery.”
3. Group 27M Marine Battery Dual Purpose Marxon RV AGM Batteries 2X Deep Cycle 12V 92Ah 800CCA 175RC…
The Marxon Group 27M Marine Battery is a dual-purpose AGM battery that offers great value. With 12V 92Ah and 800CCA, it provides reliable power for starting and deep cycle needs in RVs and marine applications.
Key Features That Stand Out
- ✓ Dual-purpose design for starting and deep cycle use.
- ✓ High capacity and cranking amps for versatile applications.
- ✓ Built to withstand vibrations and harsh conditions.
- ✓ Compatible with standard car battery chargers.
Why We Recommend It
We recommend this battery for its affordability and solid performance. It’s a budget-friendly option that doesn’t compromise on key features, making it ideal for DIY enthusiasts and casual users.
Best For
Best for RV owners and boaters on a budget who need a reliable dual-purpose battery for starting engines and powering accessories.
Pros and Cons
Pros:
- Cost-effective dual-purpose functionality
- Good power output for its price
- Durable construction for marine environments
- Easy to install and maintain
Cons:
- May have shorter cycle life than premium brands
- Heavier weight compared to lithium batteries
Customer Reviews
Customer Review: “I got this battery because it’s dual use AGM. So it works with standard car battery chargers. I needed the dual use to power my 12000 pound winch that is mounted to the rear of my truck. So I didn’t have to run expensive, thick wires to the front of my truck. I thought this battery was constructed well.”
Customer Review: “Great value for money. Works perfectly in my RV for both starting and running lights. No issues so far, and it holds a charge well.”
4. UPLUS 12V 100Ah Deep Cycle Group 27 Battery with AGM Gel for Solar and RV
The UPLUS 12V 100Ah Deep Cycle Group 27 Battery is designed for sustained power in solar and RV setups. With AGM gel technology, it offers high capacity and a 2-year warranty for peace of mind.
Key Features That Stand Out
- ✓ High 100Ah capacity for extended runtime.
- ✓ AGM gel design for maintenance-free operation and safety.
- ✓ Up to 80% depth of discharge without affecting cycle life.
- ✓ Compatible with solar charging systems.
Why We Recommend It
We recommend this battery for its reliability in off-grid applications. It provides consistent power for solar panels and RVs, and the warranty adds extra value for long-term use.
Best For
Best for solar power systems and RV owners who need a deep cycle battery with high capacity and low maintenance.
Pros and Cons
Pros:
- High capacity for longer power supply
- Maintenance-free AGM gel technology
- Good depth of discharge for durability
- 2-year warranty for added security
Cons:
- Can be heavy to handle
- Requires proper charging to maximize lifespan
Customer Reviews
Customer Review: “I purchased 4 batteries and received them last week. All were fully charged when I received them, and they’ve been working great since. It’s not a long time, I admit, but it’s nice to see them power my electronics and take a recharge to max charge daily. One of the batteries had a broken handle when it arrived, but performance is unaffected.”
Customer Review: “Solid battery for my solar setup. Holds charge well and seems durable. The capacity is perfect for my needs.”
5. Litime 12V 100Ah LiFePO4 Group 27 Battery with Bluetooth 100A BMS Low-Temp Protection and 15000 Cycles
The Litime 12V 100Ah LiFePO4 Group 27 Battery is a premium lithium option with smart features. With Bluetooth monitoring, low-temp protection, and 15000 cycles, it’s built for long-term performance in RVs and marine use.
Key Features That Stand Out
- ✓ Smart Bluetooth 5.0 for real-time battery status monitoring.
- ✓ 15000 cycles for exceptional lifespan.
- ✓ Low-temperature cut-off protection for safety in cold climates.
- ✓ RV-specific design to fit Group 27 compartments perfectly.
Why We Recommend It
We recommend this battery for its advanced technology and durability. The Bluetooth app makes it easy to manage power, and the long cycle life ensures it’s a cost-effective investment over time.
Best For
Best for RV and marine enthusiasts who want a high-performance, long-lasting lithium battery with modern features like Bluetooth monitoring.
Pros and Cons
Pros:
- Extremely long lifespan with 15000 cycles
- Lightweight compared to lead-acid batteries
- Bluetooth app for convenient monitoring
- Excellent safety features with BMS protection
Cons:
- Higher upfront cost
- May require specific charging equipment
Customer Reviews
Customer Review: “Purchased these to operate the 24 volt trolling motor on my boat. Basically half the weight of the old batteries. I have a very snug compartment that the batteries install into, and these fit perfectly (replaced lead acid group 27s). Used them for the first time on a week long fishing trip to Canada, and they performed flawlessly.”
Customer Review: “Replaced an 88 a/hr group 28 battery powering boat electronics. Lasts over a long weekend of fishing easily vs sweating whether you’ll last the day. LiTime batteries are well worth the money.”
6. UPLUS Group 24M Dual Purpose Marine Battery with 12V 79AH 550CCA AGM for Starting and Deep Cycle
The UPLUS Group 24M Dual Purpose Marine Battery is a compact option for starting and deep cycle needs. With 12V 79AH and 550CCA, it’s suitable for smaller marine applications and RVs where space is limited.
Key Features That Stand Out
- ✓ Dual-purpose design for starting and deep cycle use.
- ✓ 550CCA for reliable engine starts in smaller boats.
- ✓ AGM technology for vibration resistance and safety.
- ✓ Space-saving size compared to Group 27 batteries.
Why We Recommend It
We recommend this battery for its versatility in compact spaces. It’s a great choice if you need a reliable battery that can handle both starting and accessory power without taking up too much room.
Best For
Best for small boats and RVs with limited battery compartment space, where a Group 24 battery is preferred over Group 27.
Pros and Cons
Pros:
- Compact size fits tighter spaces
- Good power output for its class
- Maintenance-free AGM construction
- Affordable dual-purpose option
Cons:
- Lower capacity than Group 27 batteries
- Not suitable for high-power demands
Customer Reviews
Customer Review: “Excellent battery I have a class B RV with a slide out first of all I needed a pacific size in group 27 plus I needed three of these batteries. I have only had them a few months, but they were great.”
Customer Review: “Solid battery. I use this in my boat as a starting battery and running the bilge pump, live well, lights and radio. Plenty of power for those and this looks like it will be a nice long term use battery.”
7. 40Pack 27A A27S MN27 L828 A27 12v Battery Alkaline Batteries
The 40Pack 27A Alkaline Batteries offer a bulk solution for powering multiple small devices. With a 5-year shelf life and compatibility with various electronics, it’s a convenient choice for households and businesses.
Key Features That Stand Out
- ✓ Bulk pack of 40 batteries for cost savings.
- ✓ Long 5-year shelf life for extended storage.
- ✓ Compatible with many devices using 27A size batteries.
- ✓ Low self-discharge for reliable performance when needed.
Why We Recommend It
We recommend this pack for its value and convenience. If you use multiple devices that require 27A batteries, this bulk pack ensures you always have spares on hand without frequent trips to the store.
Best For
Best for users who need a large supply of 12V alkaline batteries for remotes, alarms, medical devices, and other low-drain electronics.
Pros and Cons
Pros:
- Great value in bulk packaging
- Long shelf life reduces waste
- Wide compatibility with many devices
- Reliable performance for everyday use
Cons:
- Not rechargeable, so ongoing cost over time
- Not suitable for high-power applications
Customer Reviews
Customer Review: “I ordered these 27A size 12V batteries for my stereo and HDMI cables that use the battery voltage to create an electrostatic charge advertised to reduce radio frequency interference and electromagnetic interference that can be picked up by cables and passed to your electronics. My batteries finally died after years of use, and these replacements work perfectly.”
Customer Review: “Can have remote clickers without batteries. A big thanks to Amazon great stuff.”
8. 12V 125Ah LiFePO4 Group 27 Deep Cycle Battery with Bluetooth 100A BMS for Marine RV and Solar
This 12V 125Ah LiFePO4 Group 27 Deep Cycle Battery is a high-capacity lithium option with Bluetooth and BMS protection. It’s designed for marine, RV, and solar applications where long runtime and reliability are key.
Key Features That Stand Out
- ✓ High 125Ah capacity for extended power supply.
- ✓ Bluetooth connectivity for easy monitoring via app.
- ✓ 100A BMS with multiple protections for safety.
- ✓ Compatible with series and parallel connections for scalability.
Why We Recommend It
We recommend this battery for its impressive capacity and smart features. It’s perfect for users who need more power than standard 100Ah batteries and want the convenience of Bluetooth monitoring.
Best For
Best for heavy-duty applications in RVs, marine vessels, and solar systems that require high capacity and advanced management features.
Pros and Cons
Pros:
- Very high capacity for longer runtimes
- Bluetooth app for real-time diagnostics
- Robust BMS protects against overcharge and discharge
- Lightweight for its power output
Cons:
- Premium price point
- May require specific setup for optimal performance
Customer Reviews
Customer Review: “I’ve been using this battery in my off-grid solar setup for a few months now. The capacity is fantastic, and the Bluetooth app makes it easy to check status. It holds charge well and seems built to last.”
Customer Review: “Great upgrade from my old AGM battery. The 125Ah gives me peace of mind on long trips, and the weight savings are noticeable. Installation was straightforward.”
9. SGO 12V 125Ah RV Marine LiFePO4 Battery, Group 27 Deep Cycle Lithium Battery, 1280W Max. 15000 Cy…
The SGO 12V 125Ah LiFePO4 Battery is another top-tier lithium option with high capacity and long cycle life. It’s designed for RV and marine use, offering reliable power with modern features.
Key Features That Stand Out
- ✓ 125Ah capacity for sustained power in demanding applications.
- ✓ 15000 cycles for exceptional longevity.
- ✓ Compatible with smartphones for monitoring via app.
- ✓ Lightweight design at 25 pounds for easy handling.
Why We Recommend It
We recommend this battery for its balance of capacity and durability. It’s a solid choice for users who want a lithium battery that can handle frequent deep cycles without degradation.
Best For
Best for RV and marine enthusiasts who need a high-capacity lithium battery that’s lightweight and built to last through many charge cycles.
Pros and Cons
Pros:
- High capacity and long cycle life
- Lightweight compared to lead-acid alternatives
- App connectivity for easy management
- Good value for premium features
Cons:
- Higher initial investment
- App functionality may vary by device
Customer Reviews
Customer Review: “Batteries charge quickly and last all day. Phone app allows quick checking. Good value for the performance.”
Customer Review: “Installed this in my boat, and it’s been reliable. The capacity is perfect for overnight trips, and the weight savings help with fuel efficiency.”
10. 12V 100Ah LiFePO4 Group 24 Battery with 100A BMS and Deep Cycles for RV and Solar
This 12V 100Ah LiFePO4 Group 24 Battery is a compact lithium option with a 10-year lifespan and reliable BMS protection. It’s designed for RV and solar applications where space and weight are considerations.
Key Features That Stand Out
- ✓ 10-year lifespan with 100% depth of discharge capability.
- ✓ Lightweight at 21 pounds for easy installation.
- ✓ 100A BMS for safety and performance.
- ✓ Waterproof and robust construction for outdoor use.
Why We Recommend It
We recommend this battery for its durability and compact size. It’s a great choice if you need a reliable lithium battery that fits in Group 24 compartments but offers the benefits of LiFePO4 technology.
Best For
Best for RV and solar users with space constraints who want a lightweight, long-lasting lithium battery without compromising on power.
Pros and Cons
Pros:
- Long 10-year lifespan
- Very lightweight and portable
- Waterproof and durable design
- Good value for lithium technology
Cons:
- Smaller size may not fit all Group 27 applications
- Lower capacity than some Group 27 batteries
Customer Reviews
Customer Review: “I needed a battery for my camper van, and this Group 24 lithium fits perfectly. It’s light and holds charge well. The 10-year warranty gives me confidence in the investment.”
Customer Review: “Great battery for my solar panels. Charges quickly and seems well-built. The weight savings make a big difference when mounting on my RV.”
Complete Buying Guide for Best Group 27 Deep Cycle Battery
Essential Factors We Consider
When choosing a Group 27 deep cycle battery, key factors include capacity (measured in Ah), cycle life, technology type (like AGM or LiFePO4), and application. For example, higher ampere-hours mean longer runtime, while LiFePO4 batteries offer more cycles than AGM. Also, consider vibration resistance for marine use and compatibility with your charging system.
Budget Planning
Budget varies widely. Alkaline batteries are cheap but disposable. AGM batteries offer good value for mid-range needs. Lithium batteries cost more upfront but save money over time due to longer life. Set a budget based on how often you’ll use the battery and your power requirements.
Final Thoughts
Always match the battery to your specific needs. For heavy cycling, go lithium. For occasional use, AGM might suffice. Check dimensions to ensure it fits your compartment, and read reviews to gauge real-world performance.
Frequently Asked Questions
Q: What is the difference between a Group 27 and Group 24 battery?
A: Group 27 batteries are larger and typically have higher capacity (more Ah) than Group 24 batteries. This makes Group 27 better for applications needing more power and longer runtime, like larger RVs or marine systems.
Q: Can I use a Group 27 deep cycle battery for starting my engine?
A: Yes, if it’s a dual-purpose battery designed for both starting and deep cycle use. Check the specs for cranking amps (CCA) to ensure it has enough power to start your engine reliably.
Q: How long do Group 27 deep cycle batteries last?
A: It depends on technology and usage. AGM batteries may last 3-5 years with proper care, while LiFePO4 batteries can last 10+ years and thousands of cycles. Maintenance and charging habits also affect lifespan.
Q: Are lithium batteries worth the extra cost for a Group 27 deep cycle?
A: For frequent users, yes. Lithium batteries are lighter, last longer, and can be deeply discharged without damage. If you use your battery daily or for off-grid living, the investment pays off over time.
Q: How do I maintain a Group 27 deep cycle battery?
A: For AGM batteries, keep them charged and avoid deep discharges. For lithium, use a compatible charger and monitor via app if available. Always store in a cool, dry place and follow manufacturer guidelines.
Choosing the best Group 27 deep cycle battery depends on your specific needs, whether for RV, marine, or solar power. We’ve covered top options from budget to premium, each with strengths for different applications. Consider your power requirements, budget, and how you’ll use the battery to make the right choice.
Ready to power up your adventures? Click on the links above to check prices and find the best Group 27 deep cycle battery for you on Amazon. Happy camping, boating, or solar living!
At CarLegit, we believe information should be clear, factual, and genuinely helpful. That’s why every guide, review, and update on our website is created with care, research, and a strong focus on user experience.