Choosing the right deep cycle battery is crucial for reliable power in your RV, boat, or off-grid system. Group 29 batteries are a popular size, offering a great balance of capacity and physical dimensions. Our team has researched and tested top models to bring you this definitive list of the best Group 29 deep cycle batteries, helping you make an informed purchase for long-lasting energy.
In This Article
- 1 Quick Product Comparison
- 2 Our Top 10 Best Group 29 Deep Cycle Battery Reviews – Expert Tested & Recommended
- 2.1 1. Interstate Batteries Group 29 Deep Cycle AGM Battery: 12V 100Ah for RVs and Mobility
- 2.2 2. Interstate Batteries Group 31 Marine Deep Cycle AGM Battery: 12V 100Ah with 925CCA
- 2.3 3. Renogy Deep Cycle AGM Battery: 12V 100Ah for RV, Solar, and Off-Grid Systems
- 2.4 4. Litime Group 27 LiFePO4 Battery: 12V 100Ah with Bluetooth and Low-Temp Protection
- 2.5 5. Weize Group 27M Dual Purpose AGM Marine Battery: 12V 92Ah for Starting and Deep Cycle
- 2.6 6. Interstate Batteries Group 24 Dual Purpose AGM Battery: 12V 70Ah for Marine and RV
- 2.7 7. UPLUS Group 27 Deep Cycle AGM Battery: 12V 100Ah for Solar and RV Systems
- 2.8 8. Interstate Batteries Group 22NF Deep Cycle AGM Battery: 12V 55Ah for Mobility and ATVs
- 2.9 9. WEIZE Group 31 Deep Cycle Battery: 12V 100Ah for RV, Solar, and Off-Grid Use
- 2.10 10. Newport Deep Cycle Marine AGM Battery: 12V 50Ah for Trolling Motors and Marine Use
- 3 Complete Buying Guide for Best Group 29 Deep Cycle Battery
- 4 Frequently Asked Questions
Quick Product Comparison
Our Top 10 Best Group 29 Deep Cycle Battery Reviews – Expert Tested & Recommended
1. Interstate Batteries Group 29 Deep Cycle AGM Battery: 12V 100Ah for RVs and Mobility
This Interstate Group 29 deep cycle battery is a powerhouse for RV and mobility applications, delivering 12V and 100Ah of consistent energy. Its AGM design ensures it’s ready for deep discharges without maintenance hassles.
Key Features That Stand Out
- ✓ 12V 100Ah capacity for extended runtime
- ✓ AGM and VRLA technology for spill-proof, maintenance-free use
- ✓ Universal fit compatible with many 12V systems
- ✓ Designed specifically for RVs, solar, and trolling motors
Why We Recommend It
We recommend it for its robust build and reliability from a trusted brand like Interstate. It handles repeated deep cycles well, making it a set-and-forget solution for your power needs.
Best For
Best for RV enthusiasts and users of mobility scooters who need a durable, high-capacity battery.
Pros and Cons
Pros:
- Excellent durability and long service life
- Completely maintenance-free operation
- Good value for the performance offered
- Spill-proof design for safe installation
Cons:
- Heavy weight, around 60 pounds
- Higher initial cost than some entry-level models
Customer Reviews
Customer Review: “This is the second one of these batteries I have purchased. In both cases it was to use with a Duracell Power Bank that has provisions for an external deep discharge 100 AH lead acid AGM battery like this. I have had the first one for about 2 years with no problems and just got the second one installed.”
Customer Review: “Reliable and holds charge well. Perfect for my off-grid cabin setup, no issues after a year of use.”
2. Interstate Batteries Group 31 Marine Deep Cycle AGM Battery: 12V 100Ah with 925CCA
While a Group 31 size, this Interstate marine battery is an editor’s pick for its dual-purpose power. It combines 925CCA for starting with deep cycle capability, ideal for boats and RVs.
Key Features That Stand Out
- ✓ 12V 100Ah with high 925 cranking amps (CCA)
- ✓ Pure lead AGM for 2-3x longer life than conventional batteries
- ✓ Extreme deep-cycle and cranking power in one
- ✓ Built with thick plates for sustained performance
Why We Recommend It
We recommend it for marine users who need both starting and deep cycle functions. Its toughness and extended lifespan make it a cost-effective choice over time.
Best For
Best for boat owners and RVers looking for a versatile, high-performance battery that won’t let them down.
Pros and Cons
Pros:
- Excellent cranking power for reliable starts
- Long service life with deep cycle endurance
- Maintenance-free and spill-proof design
- Robust construction for harsh marine environments
Cons:
- Larger and heavier than Group 29 batteries
- Premium pricing
Customer Reviews
Customer Review: “This battery has been fantastic on my fishing boat. It starts the engine quickly and powers my trolling motor all day without issue. The peace of mind with the AGM design is worth it.”
Customer Review: “Impressed with the durability. After a season of heavy use, it still holds charge like new. A bit pricey, but you get what you pay for.”
3. Renogy Deep Cycle AGM Battery: 12V 100Ah for RV, Solar, and Off-Grid Systems
The Renogy AGM battery is a budget-friendly star for solar and off-grid setups. With 12V 100Ah capacity, it offers reliable power without breaking the bank, backed by a trusted brand in renewable energy.
Key Features That Stand Out
- ✓ 12V 100Ah deep cycle AGM battery
- ✓ Safe chemistry with minimal troubleshooting needed
- ✓ Supports series and parallel connections (up to 4P)
- ✓ Over 230,000 units sold worldwide, showing proven reliability
Why We Recommend It
We recommend it for its excellent value and safety features. It’s a go-to for DIY solar projects and RVs where cost-effectiveness matters without sacrificing performance.
Best For
Best for budget-conscious users building solar systems or needing a reliable RV battery.
Pros and Cons
Pros:
- Affordable price for a 100Ah AGM battery
- Very safe and stable for indoor use
- Easy to connect in multiple configurations
- Good warranty and customer support
Cons:
- Heavy like most AGM batteries
- Cycle life may be lower than premium brands
Customer Reviews
Customer Review: “Got tired of adding water to both of my 5 year old deep discharge flooded lead acid house batteries for my RV. My battery compartment is just large enough for two Group 31 batteries and these are near in size to that so I bought two of them. It also helps that the price on Amazon is very good!”
Customer Review: “This battery is just what my camper needed. It will run the furnace fan through the night. Holds a charge as advertised and responds to a solar panel charge to reach full capacity easily.”
4. Litime Group 27 LiFePO4 Battery: 12V 100Ah with Bluetooth and Low-Temp Protection
This Litime LiFePO4 battery brings modern tech to deep cycle power. With Bluetooth monitoring and low-temperature protection, it’s a smart choice for RVs and marine use, even though it’s Group 27.
Key Features That Stand Out
- ✓ 12V 100Ah LiFePO4 chemistry for long cycle life
- ✓ Bluetooth 5.0 app for real-time battery status
- ✓ Low-temperature protection for safe charging in cold
- ✓ Perfect fit for Group 27-31 trays, no modifications needed
Why We Recommend It
We recommend it for its advanced features and lightweight design. The Bluetooth app makes power management easy, ideal for tech-savvy users.
Best For
Best for RV and kayak owners who want a lightweight, smart battery with excellent cycle life.
Pros and Cons
Pros:
- Lightweight compared to AGM batteries
- Very long cycle life (2000+ cycles)
- Bluetooth monitoring for convenience
- Safe operation with built-in protections
Cons:
- Higher upfront cost than AGM
- Requires specific chargers for optimal performance
Customer Reviews
Customer Review: “The Bluetooth feature is a game-changer. I can check battery levels from my phone, and it fits perfectly in my RV compartment. Worth the investment for the peace of mind.”
Customer Review: “Lightweight and powerful. After six months of solar use, it still holds 100% capacity. The low-temp protection gives me confidence in winter camping.”
5. Weize Group 27M Dual Purpose AGM Marine Battery: 12V 92Ah for Starting and Deep Cycle
The Weize Group 27M battery is a dual-purpose workhorse for marine and RV use. With 12V 92Ah, it offers both starting power and deep cycle capability at a competitive price.
Key Features That Stand Out
- ✓ 12V 92Ah dual-purpose AGM battery
- ✓ High output power with low internal resistance
- ✓ Quick charging, up to five times faster than standard
- ✓ Sealed design for maintenance-free operation
Why We Recommend It
We recommend it for its versatility and efficiency. It’s a solid all-rounder that won’t break the bank, perfect for weekend boaters or RV trips.
Best For
Best for marine and RV users who need a battery that can both start engines and power accessories.
Pros and Cons
Pros:
- Good value for dual-purpose functionality
- Fast charging saves time
- Reliable performance in various conditions
- Maintenance-free and spill-proof
Cons:
- Lower capacity than some 100Ah models
- Brand may be less known than others
Customer Reviews
Customer Review: “Replace this type of battery on my RV works wonderful. It starts the engine smoothly and powers my lights all night. Great buy for the price.”
Customer Review: “Impressed with the quick charge feature. After a day on the water, it recharges fast and is ready to go again. No issues so far.”
6. Interstate Batteries Group 24 Dual Purpose AGM Battery: 12V 70Ah for Marine and RV
This Interstate Group 24 battery is a compact dual-purpose option. With 12V 70Ah, it’s great for smaller marine and RV applications where space is limited but reliability is key.
Key Features That Stand Out
- ✓ 12V 70Ah dual-purpose AGM battery
- ✓ Pure lead technology for 2-3x longer life
- ✓ Extreme deep-cycle and cranking power combined
- ✓ Designed for marine and RV use
Why We Recommend It
We recommend it for its compact size and trusted brand quality. It’s a reliable choice for smaller boats or camper vans that don’t need massive capacity.
Best For
Best for smaller marine vessels and RVs where space is tight but dual functionality is needed.
Pros and Cons
Pros:
- Compact and easy to install in tight spaces
- Long lifespan with pure lead construction
- Maintenance-free and spill-proof
- Good cranking power for its size
Cons:
- Lower capacity than Group 29 batteries
- May not suffice for high power demands
Customer Reviews
Customer Review: “Perfect for my small fishing boat. It starts the outboard and runs my fish finder all day. The size is just right, and no maintenance is a big plus.”
Customer Review: “Used this in my pop-up camper. It’s reliable and holds charge well over weekends. Interstate quality at a reasonable price.”
7. UPLUS Group 27 Deep Cycle AGM Battery: 12V 100Ah for Solar and RV Systems
The UPLUS Group 27 battery is a solid performer for solar and RV systems. With 12V 100Ah and a 2-year warranty, it offers peace of mind for deep cycle applications.
Key Features That Stand Out
- ✓ 12V 100Ah deep cycle AGM battery
- ✓ 2-year warranty for added confidence
- ✓ 80% depth of discharge (DOD) without affecting cycle life
- ✓ Thick absorbent glass mat (AGM) for superior performance
Why We Recommend It
We recommend it for its good warranty and high capacity. It’s a reliable choice for solar setups where you need to maximize power storage.
Best For
Best for solar energy storage and RV systems where a deep discharge capability is important.
Pros and Cons
Pros:
- Good warranty coverage
- High capacity with 80% DOD tolerance
- Maintenance-free and safe to use
- Competitive pricing
Cons:
- Brand may not be as well-established
- Heavy, like most AGM batteries
Customer Reviews
Customer Review: “Working great in my solar shed. The 80% discharge means I can use more power without worrying. The warranty is a nice bonus.”
Customer Review: “Easy installation and holds charge well. For the price, it’s a steal for my off-grid cabin. No issues after six months.”
8. Interstate Batteries Group 22NF Deep Cycle AGM Battery: 12V 55Ah for Mobility and ATVs
This Interstate Group 22NF battery is tailored for mobility devices and ATVs. With 12V 55Ah, it’s a compact deep cycle option for smaller power needs.
Key Features That Stand Out
- ✓ 12V 55Ah deep cycle AGM battery
- ✓ Designed for ATVs, scooters, and wheelchairs
- ✓ AGM and VRLA technology for maintenance-free operation
- ✓ Spill-proof and rechargeable
Why We Recommend It
We recommend it for its specialized design for mobility applications. It’s reliable and safe, perfect for medical devices or recreational vehicles.
Best For
Best for mobility scooters, ATVs, and other small vehicles requiring a deep cycle battery.
Pros and Cons
Pros:
- Compact and lightweight for its class
- Maintenance-free and spill-proof
- Reliable performance from a trusted brand
- Easy to install in tight spaces
Cons:
- Lower capacity for high-demand applications
- May not fit standard Group 29 trays
Customer Reviews
Customer Review: “Perfect for my father’s mobility scooter. It lasts all day on a single charge and is easy to handle. Interstate quality shines here.”
Customer Review: “Used this in my ATV for camping trips. It powers lights and a small fridge reliably. No maintenance is a huge plus in the field.”
9. WEIZE Group 31 Deep Cycle Battery: 12V 100Ah for RV, Solar, and Off-Grid Use
This WEIZE Group 31 battery is a cost-effective deep cycle option for various uses. With 12V 100Ah, it’s suitable for RVs, solar, and off-grid systems.
Key Features That Stand Out
- ✓ 12V 100Ah sealed lead acid (SLA) battery
- ✓ Maintenance-free and spill-proof design
- ✓ Fits applications like wheelchairs, generators, and trolling motors
- ✓ Dimensions compatible with common Group 31 sizes
Why We Recommend It
We recommend it for its versatility and affordability. It’s a good entry-level battery for those new to deep cycle systems.
Best For
Best for general off-grid use, RVs, and commercial applications where budget is a concern.
Pros and Cons
Pros:
- Affordable price for a 100Ah battery
- Maintenance-free and safe to use
- Wide range of applications
- Good performance for the cost
Cons:
- Heavier than advanced chemistries like LiFePO4
- Cycle life may be shorter than premium AGM batteries
Customer Reviews
Customer Review: “Well built, quality AGM battery holds charge well and performs as well as expected. Beats the hell out of standard lead acid battery for a better relative price.”
Customer Review: “I bought two of these for an off-grid RV on our property. They power everything we need to camp, including providing ample electricity for lights and a small fridge. Great value.”
10. Newport Deep Cycle Marine AGM Battery: 12V 50Ah for Trolling Motors and Marine Use
The Newport marine AGM battery is a lightweight option for trolling motors and small boats. With 12V 50Ah, it’s easy to handle and provides reliable deep cycle power.
Key Features That Stand Out
- ✓ 12V 50Ah deep cycle AGM battery
- ✓ Lightweight design at only 32 pounds
- ✓ Sealed AGM lead acid for durability
- ✓ Compatible with trolling motors and marine accessories
Why We Recommend It
We recommend it for its portability and marine-specific design. It’s perfect for anglers who need a battery that’s easy to carry and install.
Best For
Best for trolling motor users and small boat owners who prioritize lightweight and reliable power.
Pros and Cons
Pros:
- Lightweight and easy to transport
- Maintenance-free and spill-proof
- Good for trolling motor applications
- Affordable for its capacity
Cons:
- Lower capacity for longer trips
- May not suit high-power demands
Customer Reviews
Customer Review: “Perfect for my kayak trolling motor. Light enough to carry, and it lasts all day fishing. The AGM design means no leaks or maintenance.”
Customer Review: “Great battery for small boats. It powers my fish finder and lights without issue. The lightweight is a game-changer for loading and unloading.”
Complete Buying Guide for Best Group 29 Deep Cycle Battery
Essential Factors We Consider
When picking a Group 29 deep cycle battery, focus on capacity (Ah), voltage (usually 12V), and battery type. AGM batteries are maintenance-free and spill-proof, great for RVs and marine. LiFePO4 batteries are lighter and last longer but cost more. Also, check cycle life, warranty, and physical size to ensure it fits your space.
Budget Planning
Set a budget based on your needs. AGM batteries like the Renogy offer good value, while premium options like Interstate provide longer life. For long-term savings, LiFePO4 batteries may be worth the upfront cost due to their cycle life. Always balance price with features like warranty and brand reputation.
Final Thoughts
Think about your specific use—RV, solar, or marine—and choose a battery that matches. Group 29 is a versatile size, but consider alternatives like Group 31 for more capacity if space allows. Read reviews and compare specs to find the best fit for your power demands.
Frequently Asked Questions
Q: What is a Group 29 deep cycle battery?
A: A Group 29 deep cycle battery is a standard size battery (about 13 x 6.8 x 9.4 inches) designed for repeated discharging and recharging. It’s common in RVs, marine, and solar systems for its balance of capacity and dimensions.
Q: How long do Group 29 batteries last?
A: Lifespan varies by type. AGM batteries last 3-7 years with proper care, while LiFePO4 can last 10+ years with thousands of cycles. Usage, charging habits, and environment all affect longevity.
Q: Can I use a Group 29 battery for solar?
A: Yes, Group 29 batteries are excellent for solar storage due to their deep cycle capability. Look for models like the Renogy or UPLUS that are designed for solar applications.
Q: What’s the difference between AGM and LiFePO4?
A: AGM batteries are lead-acid, maintenance-free, and affordable but heavier. LiFePO4 batteries are lithium-based, lighter, with longer cycle life, but more expensive. Choose based on budget and weight needs.
Q: How do I maintain a deep cycle battery?
A: For AGM batteries, maintenance is minimal—just keep them charged and avoid deep discharges below 50%. Use a compatible charger and store in a cool, dry place. LiFePO4 batteries require even less maintenance but need specific chargers.
Choosing the right Group 29 deep cycle battery can make all the difference in your adventures or off-grid life. We’ve highlighted top options from trusted brands to suit various needs and budgets. Remember to consider your specific power requirements and installation space. Ready to power up? Check out our top picks via the links above to find the perfect battery for you. Happy exploring!
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