Have you spent thousands of dollars buying RV batteries but could not get the best one? You are now frustrated because you are always replacing your RV battery.
You do not have to be in this situation anymore. A marine RV battery can be a better option for you. The best marine RV battery gives a lot of benefits to its user than other types of RV batteries.
Unfortunately, finding a suitable marine RV battery is not as easy as it sounds. To make the process easier, we have compiled reviews of the 8 best marine batteries so that you can quickly find the one suitable for you.
Renogy Deep Cycle AGM RNG-BATT-AGM12-100
5 out of 5
Optima OPT8016-103 Deep Cycle
5 out of 5
Optima OPT8014-045 Dual Purpose
4.5 out of 5
VMAX857 AGM Deep Cycle
4.5 out of 5
Interstate Deep Cycle Battery (DCM0035)
4 out of 5
Our Best Reviews on Marine RV Batteries
It's time for us to look at some of the best marine RV batteries reviews, which can support starting power supplies without damaging them over time.
1. Renogy 12v 100ah Deep Cycle Marine Battery
Are you looking for a marine battery that is maintenance free? If so, Renogy 100AH Deep Cycle Marine Battery is the right choice.
These batteries feature thick absorbed glass mat separators (AGM) and the latest valve-regulated technology, which eliminates the need for sulfuric acid.
While maintaining their power longer, these powerful deep cycle AGM batteries can discharge at a higher output. This means you get the most for your money if you need reliable electricity on the go.
It has enough power to support the most demanding of applications, allowing 5 times the self-discharge rate of conventional batteries.
At 77 degrees Fahrenheit, this battery will maintain a self-discharge rate of less than 3%. This means your battery will be ready for use more often and for a longer period of time.
Its wide operation temperature range of negative 32 degrees Fahrenheit makes it perfect for almost any application. Enjoy more time away from the dock with peace of mind, knowing your batteries are able to handle the toughest conditions.
From Maintenance Free to No Acid Added, Renogy AGM Batteries give you everything you need and nothing you don't. So these features make it the best deep cycle marine battery.
It is better not to use the battery upside down as it may cause the starting battery not to function normally due to the positive and negative reversal of polarity.
- Maintenance free functions
- Thick Absorbed Glass Mat Separators
- Latest Valve Regulated Technology
- Self-discharge rate of less than 3%
- Wide operation temperature range
2. Optima Blue Top Marine Battery Review
These batteries are designed to provide a longer performance than traditional deep cycle marine batteries. This makes them the ideal marine battery for RV.
You will have a performance that continues with a reserve capacity of 120 minutes for constant performance. They can also be used as RV batteries where creature comforts often drain a starting battery quickly.
As a result of its resistance to vibration and flexible venting, the BlueTop line is less susceptible to weight gain in hard-use conditions.
When electrical loads are higher than usual or the discharge cycle is longer than typical engine starting, these Optima batteries excel.
The starting battery comes standard with a maintenance-free design so you never have to fill your battery with water or purchase costly acid packs again.
It features Spiral Cell Technology, which is exclusive to Optima Batteries and delivers extreme power for high demand applications such as boat and RV use.
The optima batteries are manufactured from hi-tech cells that perform well in varied temperature and humidity conditions. This ensures consistent product performance even with abusive charging/discharging cycles.
Automated winding machines ensure the tight tolerances needed to assure quality and performance of the winding.
- Reserve 120 minutes for constant performance
- Resists vibration to weight gain during hard use conditions
- Comes standard with a maintenance free design
- Features Spiral Cell Technology to deliver extreme power
3. Optima Yellow Top Battery Review
Are you tired of your marine battery dying out on you in the middle of nowhere? If you want to experience complete engine cranking without any problems, it's one of the best marine RV batteries for you.
The Optima Yellow Top Battery is the perfect starting battery for your RV, no matter what you have. The 750 Cold Cranking Amps are enough to handle any demand on your car, even if it has an elaborate stereo system, air conditioning or other accessories.
Unlike basic batteries that can't hold their charge in cold weather, these optima batteries will keep their 120 minute reserve capacity even in winter. This prevents you from getting stranded and losing time and money on maintenance.
The SpiralCell design protects you and the environment from harmful fumes by not emitting hazardous gases like hydrogen gas which is only found in standard lead acid batteries.
Due to their low self-discharge, Optima batteries are also well suited for seasonal use. Therefore, you don't have to regularly charge your RV during the winter and can start it up when it's time to head out in the spring.
Compared to regular batteries, the starting battery is 15 times more durable. This is a solution for every RV owner who wants a high-quality battery that will last. The rating of the battery is 55 AH and it has a C20 capacity.
- Heavy duty battery that can power any system
- Prevents you from losing time and money with maintenance
- Provide 120 minute reserve capacity in winter
- Durable as it is 15 times more durable than regular batteries
- Safe for your family as it has a spiral cell design
4. VMAXTANKS - Best AGM Deep Cycle Battery for Trolling Motor
If you are looking to buy a battery that is amazingly efficient but also inexpensive, Vmax 857 Agm For Trolling Motor is the perfect product. This starting battery has an excellent deep cycle capacity of 35 amp hours, so it lasts longer on use than most batteries of this size would.
Its super heavy-duty construction, which we will touch on more in just a moment, ensures that it can put up with the various movements and vibrations that come with driving.
This durability means that you won’t have to worry about where you go when mounting it in your RV. The AGM battery is made from excellent materials.
You don't need to worry about its maintenance because this starting battery is a sealed AGM type which means it doesn't require any maintenance.
Due to its capacity for heavy-duty applications, this Best AGM Deep Cycle Battery for Trolling Motor is appropriate for use with RV.
Its size is also compact, allowing it to fit into the place of your choice. Just pick the best place for this marine battery and mount it wherever you like.
- Has an excellent deep cycle capacity of 35 AH
- Can put up with the various movements and vibrations
- Doesn't require maintenance
- Compact size to fit into the place of your choice
5. Interstate Deep Cycle Battery Prices (DCM0035)
Interstate Deep Cycle Batteries are rechargeable, maintenance-free thanks to VRLA technology, and spillproof thanks to AGM technology.
In addition to providing professional grade quality features, this interstate marine/rv deep cycle battery is specifically designed for rvs, wheelchairs, and scooters.
It provides the performance your mobility needs with minimal upkeep. Interstate Deep Cycle Battery prices are reasonable yet still high-quality.
The Interstate Deep Cycle Batteries are for heavy usage, long lasting with dimensions of 7.68 x 5.16 x 6.42 inches. This 12v 35ah sealed lead acid battery has terminals that slide into place, replacing the flag type terminal cover found on other products in the same category.
For dependable, long-lasting deep cycle power, these batteries are the best. They provide superior levels of performance you can count on like uninterrupted service even in extreme weather conditions.
There is a greater capacity for deeper cycles due to thicker and more robust lead plates.
- Rechargeable and Maintenance Free
- Greater power output due to thicker lead plates
- Better value, owing to longer cycle life
- Provides performance with minimal upkeep
6. Mighty Max Battery - Smallest 12v Deep Cycle Battery
We present to you the Mighty Max ML35-12, a rechargeable maintenance free Sealed Lead Acid battery with a capacity of 35AH.
The smallest 12v Deep Cycle Battery comes with Screws but does not come with a wire harness or mounting accessories which are not included in the listing.
It is possible to use this starting battery at a wide range of temperatures, which means it can operate at freezing temperatures and resist vibration.
Moreover, the SLA spill proof characteristic makes this product resistant to spills of any kind while still pumping out juice when needed. It has a deep discharge recovery function, meaning it can last for days after being discharged.
Mighty Max SLA Battery is versatile and high performance in various high or low temperatures and can be fitted in any position.
- Deep cycle, maintenance free battery
- Wide operating temperature range
- Recovers from deep discharge faster
- SLA spill proof, resists vibrations and spills
7. ECO-WORTHY Lithium Iron Phosphate Battery
ECO-WORTHY Lithium Iron Phosphate Battery is a durable and eco-friendly battery for RVs. These marine batteries are made of lead-acid and are only capable of withstanding 300 cycles.
It also maintains 80 percent capacity after 3000 deep cycles. The battery's service life is more than eight times longer than lead-acid batteries.
It has a built-in BMS that can save it from overcharging, overload, overheating, deep discharge and short circuit, and a low self-discharge rate, ensuring the battery will be ready when you need it most.
These features allow for peace of mind knowing your equipment will have continuous power without worrying about capacity or efficiency issues.
With just 12.7 pounds in weight, this small, compact battery is easy to move and install in your appliances. Because of its unique design, this lithium battery can also be connected in parallel or series so you can charge it fast or with solar panels.
You can connect up to 4 batteries in series. It is great for many applications including campervans, caravans, boats, and more.
- Can be used in both indoor and outdoor applications
- An industry leading 3,000 cycles
- Able to connect 4 batteries in series
- Provides high power density and delivers superior performance
8. Roypow Life Cycles Rechargeable Marine RV Batteries
Roypow electric power packs are built-in with a rechargeable marine battery and can be used as an independent power source for your trailer, motor home, or camper.
You won't have to worry about running out of power while you're at the campground with these powerful starter batteries.
They can reach 80 percent capacity after 3500 cycles of charging and discharging under 100% DOD conditions. The battery's cycle life can be extended from 3500 to 8000 cycles by reducing the charge and discharge rates.
The Built-In BMS (battery management system) will stop recharging when it is 0℃ to protect the battery from damage caused by temperature volatility, overcurrent, overheating, etc.
You can use this deep cycle battery for various devices, including RV, camper, marine power, off-grid applications, and more. You can attach it up to 4 in series and 2 in parallel. The maximum capacity of the battery is 36Ah which is amazing for its weight.
- Lightweight, compact and portable design.
- Can be attached up to 4 in series and 2 in parallel
- Maintainers are not required during the storage period
- Built with a rechargeable marine battery
These are our top marine batteries for RVs. Each battery provides a wide range of features that make them ideal for powering electrical appliances in various places.
By using these starter batteries, you can feel safe knowing that your RV will have the power it needs when there's no place to connect to a power source.
Factors to Consider When Buying a Marine RV Battery
When it comes to buying a reliable marine battery, there are a lot of things you have to take into account. There's a reason why most people prefer these house batteries over the other ones on the market today.
They provide more power and last longer than other batteries. And so it is advisable that you read this section first before taking out your money to purchase one for yourself.
Here are the factors that you have to consider:
This is measured in AH and it is an indicator of how much power a battery can store at one time. If you're running charge-hungry units like trolling motors, this will be very important.
It is advisable that you choose a marine battery with a high amp hour rating. The higher the AH, the more energy the battery can store up.
It will also determine what kind of marine battery and RV battery you need for your RV. If you're just using your RV once, then it is advisable that you pick up an AGM or Flooded battery because they can be used multiple times without any problems whatsoever.
However, if you mostly use your RV every day and want a battery that can handle a lot of abuse, then it is advisable that you pick up a Gel marine battery. It will be able to provide you with all the power your RV needs, and it also lasts longer compared to other batteries.
It refers to how long the battery can last before it needs replacement. It is best that you determine this factor first so that you know how much money you will use for replacements.
It's a measure of how fast the battery can provide power. You should choose a high discharge rate battery if you want your RV's battery to supply all the power it needs. It also affects how long your house batteries can last before they need to be replaced.
Your battery must be charged for this long before it can be fully charged. This is very important especially if you want to use your RV for a number of hours in one day. If you choose a battery with a higher amp hour rating, then the charging time might also be longer.
A few batteries are rechargeable while some are not. If you buy an AGM or Flooded battery, then it is advisable that you recharge it at least once or twice per month to keep its power intact.
It also affects the battery’s life because if you don't charge it properly, then this can damage its internal composition, which might affect how long it will last before it needs replacement.
You also have to consider how durable the battery is. The last thing you want is to purchase a battery that doesn't last long. This will make sure that your RV can use it for a number of years before replacing it with another one.
It's best that you check the material used in making the marine batteries you're about to use. Some are made from pure lead, while others are made from pure lead in combination with other metals. Quality marine RV batteries consist of pure lead, but they're more expensive than the rest because it's rarer.
If you live in a hot climate, then it is best to choose a marine battery with a high heat resistance rating in case your battery gets exposed to the elements for a long time.
Otherwise, it might burn up and destroy your RV before you know it. If this happens, then not only will you lose a lot of money, but you will also lose your fishing gear and any other equipment that might be attached to the battery for power.
The marine starter batteries also come in different sizes. Make sure that you choose one that will fit your RV perfectly. But you have to make sure that the battery can be mounted either in your RV. If it can't be installed properly, then this will do more damage than good to you and your RV.
If you're planning to bring your battery into or out of the water, then it is best that you choose one that isn't too heavy. If not, then it might be very difficult for you to do this without proper assistance.
It's important that the marine RV batteries are lightweight so that they can be brought in and out of the water in an easier way. Suppose you live in a tropical country with high humidity levels.
In that case, opting for marine batteries that are not waterproof is also advisable so that heat doesn't build up inside the battery when it is being used.
When you're out in the open sea, there are high chances that your RV will be exposed to many vibrations. If you buy marine RV batteries that can resist many vibrations without getting damaged or broken apart, this is definitely a plus. This will help prolong its life so that you won't have to buy another one anytime soon.
This is very important because it safeguards you from any dangers that might come your way because of a faulty battery installation. If you do not know how to properly connect a marine battery or if the person doing the job does not know how to either, please seek help from someone who can provide you with an safe and effective installation.
Safety During Disposal:
Take into account the safety of you and your loved ones when disposing of your old RV marine battery. You should always remember to dispose of them properly so as not to pollute the environment or harm anyone around you such as children and pets. Always read the instructions on how to dispose of them safely.
It is preferable that you choose the best RV marine battery that does not require any maintenance so that you can save money and time. Even though these types of batteries might be more expensive, at least you will not have to waste your time doing any additional work to them.
There are a lot of marine RV batteries on the market today, so you can take your pick from any one of them. A few batteries come from a reputable brand. Do not be fooled by the brand alone because some brands might just put their names on poorly made products just to earn money and nothing else.
You have to choose between good brands that rely not only on their names but also on their quality products. With a good brand, you know that no matter what happens, they will be able to provide you with the best marine RV battery in terms of performance and overall use.
Last but not least, you have to consider the overall cost of the battery. This is an important factor as well since you don't want to purchase a cheap marine RV battery that will just work for a few months and then die out after. Look at how much money you are willing to spend before buying a new battery.
And since most people are looking into purchasing marine RV batteries online, you can get a lot of discounts and offers on these kinds of batteries if you look hard enough.
You have to remember that there are a lot of things you have to take into account when buying your RV marine battery. However, if you follow the factors mentioned above, then you will be able to make an informed decision on which batteries are best for you. Just ensure that your unit is properly charged and it will serve you well for a long time.
Different Types of Deep Cycle Batteries
There are 3 types of batteries available on the market today. These are the Flooded batteries, Gel batteries, and AGM batteries. Each has its own pros and cons.
These are the traditional lead acid batteries that most marine deep cycle batteries are made of. This type of marine RV deep cycle battery can sit in a discharged or flooded state for a long time and they will still have the energy to power up your RV.
Flooded batteries require regular maintenance to prevent corrosion in their terminals, but they are quite inexpensive compared with other types of batteries.
If the electrolytes of the battery are exposed to air, then it is more likely that bubbles will form on them, which will decrease the capacity of your deep cycle battery. This is why it is advisable that you maintain flooded batteries regularly to get the most out of them.
Gel Marine Batteries:
Gel batteries are not common among RV marine battery users, but they have been growing in popularity over the past years because apart from having more power than other kinds, they also last longer.
This deep cycle battery is preferred by people who desire a maintenance-free battery that does not require any topping up of liquids or corrosion control. A Gel battery has a high charge acceptance rate, meaning it can be charged faster than a flooded sealed lead acid battery.
AGM Marine Batteries:
They have lead acid cells with glass mats for holding the electrolyte, which are the latest technology in marine batteries. AGM technology is a more expensive technology, but it is gaining popularity among users of deep cycle batteries because of its ability to last for a long time even in hot conditions.
AGM batteries are also sealed, so they can easily be installed in places where you don't have access to the battery for regular maintenance. This makes them the best choice for people who want batteries that they can install in one place and forget about.
A deep cycle AGM battery comes in high, medium, and low-rate models, meaning it can handle more discharges than a flooded marine RV battery. Unlike gel batteries, these types have a lower self-discharge rate, but they are more expensive.
These are the main marine batteries available on the market today. If you are looking to buy a deep cycle AGM battery, it is important that you know what your needs will be before deciding on which marine battery type to purchase.
However, it is advisable that you don't use this deep cycle AGM battery if your RV does not come with an appropriate charging system already built into it. Otherwise, you will damage your entire electrical system in the long run, which is not something you would want to happen.
How to Install a Deep Cycle Marine RV Battery in RV?
The installation of a deep cycle battery is not difficult, but it requires patience.
1. Turn off or Disengage your RV from the power source before you do anything else. If it is not turned off, you run the risk of getting electrocuted.
2. Decide where you want to install your new marine RV battery before you start installing. Make sure that the location is dry and clean so it won't be a hindrance in placing your deep cycle marine battery there.
3. Use the hand crimper to detach the clamps on your old battery. Make sure the crimper is adjustable to get a good fit for your battery's terminals.
4. Detach the wires from the terminals of your old battery by unscrewing the terminal nuts. Loosen up the nuts with your flat blade screwdriver before you remove them completely using hand or pliers. Remove the starting battery from the case and set it out of your way.
5. Clean off any dirt or debris from the area where you'll be placing your good RV battery. Make sure that there's no residual material left at all to avoid short-circuiting in the future. Wipe it clean with a damp cloth and let it dry.
6. Lift up your new deep cycle battery, making sure that you have the right side facing downwards so it will fit in properly in its case.
7. Put back your old battery's cables to the terminals of your new deep cycle battery by attaching them with the terminal nuts and tightening them with a flat blade screwdriver or hand crimper.
You can attach them the same way they were attached to your old battery by screwing them on there. After that, use your flat blade screwdriver to attach the cables to one another using the terminal clamps you got with your new RV battery set.
8. Make sure that all of your connections are done properly before you place the deep cycle battery in its case. After that, you can use the hand crimper to attach the clamp to your positive terminal.
9. Place the rectangle lid on top of your good RV battery case and screw it into place with a flat blade screwdriver.
10. Plug in or turn on your RV's power source so it can begin charging your new deep cycle battery. You can also use solar power, or shore power if you want to save energy and take the hassle involved in charging it manually.
Marine RV Battery FAQs
1. Are Marine Batteries Good for RVs?
Answer: Yes, marine batteries are good for use in RV, but they are much more expensive than regular deep cycle batteries. If you want to be able to use your RV's electronics without draining the vehicle's battery, then it is advisable that you invest in the best deep cycle marine battery.
2. What is the Longest Lasting RV Battery?
Answer: Deep Cycle Marine Batteries are considered to be the longest lasting marine batteries on the market. They can last for 10 years or even longer when maintained correctly and charged well. In our list of the top 8 marine batteries, you will see Optima batteries have been highly rated for being long-lasting.
3. Can I Connect Two Batteries Together if I want to Increase My RV Battery Capacity?
Answer: Connecting batteries is always a hazardous thing to do, especially since you might end up short-circuiting the entire RV. This is why it is advisable that you purchase the best deep cycle marine battery with high power and capacity ratings instead of connecting your batteries together.
4. Is There Any Difference Between Starting and Deep Cycle Marine Batteries?
Answer: Most marine deep cycle batteries will have a cranking rating as well, but the difference between the two kinds is that cranking batteries are designed for starting a motor. Deep cycle batteries can also be used to start an RV engine, but they are optimized for powering electrical appliances and equipment.
5. How do I Charge an RV Marine Battery?
Answer: Marine batteries have a lower charging voltage compared to regular deep cycle batteries. This means you will need a voltage regulator or else your RV's entire electrical system might be damaged in the long run.
You can also opt for an intelligent battery charger that automatically adjusts its current depending on the kind of RV marine battery you are charging. Otherwise, you will need to monitor the voltage levels on your RV marine battery so it does not get overcharged, or else it will get ruined.
6. What Happens if my RV Marine Battery is Not Fully Charged?
Answer: If you accidentally lower the voltage levels of your RV marine battery while it is charging, then you will see some sulfation at the bottom part where it has been discharged. You'll need to drive or run your RV engine in order for the electrolyte fluid to mix with the sulfate, which will make it usable once more.
A journey with a recreational vehicle is quite a good experience for those who love to travel and explore different places. But it is very important that you take care of your RV batteries so they can last longer, especially if you are planning trips to more remote regions where the electricity supply might be scarce.
This article gave you complete information about these kinds of batteries and why you need them in your RV. Hopefully, you can now choose the best marine RV battery to use for your vehicle so you can travel safely and without worries.