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The Best RV Battery Boxes

Written by Stephen Ryan / Fact checked by William Turner

RVs or trailers won’t run efficiently without batteries. Without them, your RV appliances will need to be hooked up with a power line constantly for you to enjoy them. But with a good deep cycle battery, you will be able to store enough power to run your appliances even on an off-grid setup. However, in order for batteries to perform optimally, it needs to be protected against elements and external forces that could potentially damage it. This is the reason why you need to get the best RV battery box.

best rv battery box

But before you purchase one, you need to learn a great deal about this particular item. This is to determine which one will provide your battery the best level of protection it truly deserves. In addition, this is to prevent you from buying a substandard product. If this is your first time researching a deep cycle battery box, we have all the information that you need.

Top 1

Camco Heavy Duty 55375


Dimensions ‎24.7 x 14.6 x 11.8 inches
Weight ‎0.99 pounds
Straps 2

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Top 2

Camco Regular 55362


Dimensions 11 x 9 x 13 inches
Weight ‎0.99 pounds
Straps No

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Top 3

Attwood Group 27


Dimensions 10.12 x 18 x 21.75 inches
Weight 1.53 Pounds
Straps 1

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Table of Contents

10 Most Trusted Battery Box for RV Reviews 2023

1. Camco Heavy Duty Double Battery Box

The Camco Heavy Duty Double Battery Box provides a neat solution for RV owners to safeguard their RV batteries. It comes with a robust construction that meets the stringent requirements of the US coast guard, which is why it’s an exceptional buy.

This product looks like a miniaturized version of my RV propane and battery box. It is spacious enough to accommodate a pair of 12-volt 24/24M lead-acid batteries. However, it does not limit its battery carrying capability to standard SLAs and AGMs. This enclosure can also accommodate two 6-volt Group GC2 power bricks.

Moreover, this product is three times more affordable than the NOCO, making it an exceptional buy for budget-conscious RV owners. I can buy two of these enclosures for 4 batteries, and I am a happy RVer.

Although affordable, I do not question its strength and durability. Its heavy-duty polypropylene casing resists corrosion while giving it the resiliency to withstand the rigors of traveling. I also appreciate the addition of nylon straps and screws for mounting this battery enclosure into my travel trailer.

I am glad this RV battery box meets the stringent requirements of the American Boat and Yacht Council (ABYC E-10.7). I will feel more confident putting two of my 6-volt GC2 batteries in this enclosure.

Sadly, it does not come with a locking mechanism. However, people can still put a chain around the box or a padlock in the strap connection. Its universal design might be a drawback for some people because their batteries might “jiggle” inside.

  • Compatible with two 6V or 12V RV batteries
  • Heavy-duty polypropylene construction for durability
  • Complete with straps and screws
  • Meets marine federal and industry requirements
  • Affordable price
  • No built-in lock
  • Batteries might jiggle inside
I recommend this RV battery box for its affordability and versatility. It also meets federal specifications and has an excellent construction that will leave most brands in the dust.

2. Camco Regular 55362 Battery Box

I have two heavy batteries in my camper’s compartment and was worried about the corrosion and grease building up. I disposed of the original boxes which were damaged during a job relocation. I kept them in the garage while searching for a durable battery box. My wife surprised me with this Camco Regular 55362 Battery Box last month. I installed it at once and we hit the road the day after.

It looks like a basic battery box but it really does a great job in keeping my batteries protected. They are no longer greasy and so far no acid leaks. I used a corrosion inhibitor to fully clean the terminals and the floor compartment. I love how nice and secure my batteries sit inside.

Another nice thing I like about this RV dual 12v battery box is that it is made of polypropylene plastic. I noticed that it is resistant to absorbing moisture. The robust material makes it heat resistant too and is generally considered safe. What I don’t like about this is that it’s not as hard as I expected it to be. It’s not as flimsy, but I had hoped the plastic would be thicker.

It is pretty easy to carry around and gaining access to my batteries is as simple as lifting the lid off. And the RV battery cover is perfect enough to stay in place. The package came with a woven strap and bracket. I mounted it to keep the bottom section from being lifted out. It also saves me time because the cables can come out from either two of the corners. That will be helpful should I need to relocate the batteries or if it needs to get serviced.

  • The box is sturdy and easy to install
  • Fits my group size 24 batteries
  • It includes mounting hardware and strap
  • Meets USCG CFR 183.420 and ABYC E-10.7 specifications
  • The strap design is not durable
This RV dual battery box vented product exceeded my expectations! The protection the box provides on my batteries is first-rate. I will purchase the same brand for future use and would definitely recommend this box to a friend.

3. Attwood Group 27 Battery Box

The efficiency of the Attwood Group 27 Battery Box is excellent since I was able to use it for my deep cycle batteries for years and it really held up well. With its new larger capacity, I can say I like this better than the ones sold by other retailers.

I like that this vented battery box for RV keeps my batteries protected on balmy winters and warm summers. Since I usually store one of my RVs for months during the winter, bringing and charging the batteries at home is fairly easy with the big handles. The extremely tough material keeps it from moisture and from being easily drained.

I love how the small vents are situated on top and on the side because they easily let the hydrogen gas harmlessly escape. No issues on the lid since it stays in place using the sturdy strap which is great. Speaking of sturdiness, I can never go wrong with this product. The hold-down straps alone are reliable enough to resist 350 pounds of force. I’d say that it is approximately four times the USCG requirement. But even though the straps are pretty strong, the buckles are flimsy! I had to get it replaced, which was a shame.

Since I had this dual vented battery box mounted inside my RV, there is no need to seal the hole. I think it has to be covered if installed outside the vehicle especially on wet or rainy days. This way, you can expect to have a longer battery life which means saving extra dollars.

With its practical but extremely tough design, I was able to attach cables while the battery is inside. I only used small cables so drilling holes is no longer necessary. I just made sure that wires are connected to the right terminals for safety. The notches also allow me to run the cables either on the sides or at the front.

  • Made of high-quality material
  • Good value for money
  • Sturdy strap secures the box
  • Easy to use and maintain
  • The plastic strap buckle is not strong enough
This Attwood battery box is the perfect choice for me. It provides preferable benefits that I never got from regular battery boxes before. Most importantly, the price of this is unbeatable.

4. NOCO HM318BKS Snap-Top Battery Box

Getting a high quality and efficient battery storage for sizes group 24 and above is as easy as pie with the NOCO HM318BKS Snap-Top Battery Box.

I was skeptical to purchase another battery box for my RV, but this is exactly what I needed! From the outside, the overall molded plastic seems heavy-duty. The handles on the side are pretty durable and the wide grip makes it easier for me to carry it around for battery relocation.

Another nice thing I like about this product is the snap-lock lid. It came with a strap that completely holds the battery box down to the floor or in place. I’d say, this is very essential to secure the box when on the road. Aside from that, it also has a hardware mount which is perfect for permanent installation.

The adjustable divider allows various battery sizes to fit in, this is why I recommend getting the product as you have choices to fit in batteries from group 24 and group 27, 6-volt batteries and UI batteries. This keeps the batteries from sliding from side to side. Though I think it’s a bit small to fit Group 30 and 31 batteries. I wonder why they indicated that in their listing.

What I love most is its sturdiness. It is amazing that it maintains impact resistance in extreme weather conditions down to -20 degrees F. I won’t worry that it will get brittle in a very cold environment. And since it is UV resistant, I think this will last in or out of the RV.

Unlike the other battery boxes I tested before, the full-flow of ventilation is superb! It makes me feel safe when the battery gets to breathe and gases are released safely on its multiple exit points. It also has four locations for wirings and the gaps on the lid make it easy for me to run cables on all corners. This also has acid resistance reservoirs that safely capture battery leaks. This feature will definitely prolong the battery life, saving me more money in the long run.

  • Functional design
  • heavy-duty
  • Certified by the US Coast Guard
  • Universal Fit
  • The strap buckle mechanism was difficult to open and close when I first used it
I highly recommend this product to everyone who wants to protect their size 24-31 group batteries and automotive from impact, as well as leaking of battery acid and contaminants. It’s worth every penny!

5. NOCO HM426 Dual 6V GC2 Commercial-grade Battery Box

I like the Camco 55375 because it accepts either a 12-volt or a 6-volt battery. However, RV owners who use only Group GC2 6-volt batteries are better off with the NOCO HM426. This product is one of the most impressive battery boxes I have ever seen for trailer, motorhome, fifth wheel, camper, and boat owners.

I love this battery enclosure’s impressive construction. It has a tough shell and a thoughtful design. The four corners integrate a fastening system for securing the enclosure into the RV. It also has a captive lid that shuts tightly into the casing, ensuring no water, dust, moisture, or dirt will enter the compartment.

The shell is one of the toughest I have seen. It can withstand freezing temperatures of minus-40 degrees Fahrenheit and blunt forces. This battery box is also impervious to oils, gas, and acid exposure, ensuring maximum battery safety. I appreciate its UV-resistant casing, guaranteeing this RV double battery box will last many years.

I am surprised it has an integrated battery acid reservoir, perfect for storing the solution for topping off my 6-volt Group GC2 lead-acid batteries. I am also glad it has a built-in ventilation system, making me feel safer about hydrogen gas-related battery damage and explosions. My family will also feel more secure with this box protecting our batteries and the motorhome.

Like the Camco 55375, this battery enclosure also complies with the stringent standards of the US Coast Guard (183.420) and the American Boat and Yacht Council (ABYC E-10.7).

Given the robustness of its construction, I understand why this battery box is more than three times costlier than the Camco 55375.

  • Ideal for storing GC2 6V batteries
  • Built-in ventilation
  • Integrated battery acid reservoir
  • Robust enclosure construction with fastening system and tight lid
  • Exceptional battery protection against freezing temperature, oils, gas, acids, etc
  • Complies with high standards (182.420 coast guard and E-10.7 ABYC)
  • Expensive price
Still, I will not hesitate to recommend this RV battery box to anyone. Its thoughtful construction is something RV owners will appreciate for many years.

6. Battery Shackle Battery Boxes for RV

My friends and I love going outdoors, and this battery lock from Battery Shackle made me feel comfortable during each camping night. After hearing several horror stories from campers losing their batteries, I immediately made a decision to get one. This is a must-have item on travel trailers with expensive batteries.

This battery lock is so easy to install with no tools required, typically under two minutes. A little snap and lock and you’re all set. Very user-friendly right? The slick, precision laser cut steel makes it smooth and clean. It snugly fits over the battery box giving it a neat appearance.

It came with three pieces of 2-inch sized padlocks. Something I am grateful for since I no longer have to shell out money straight from my pocket. The sturdy locks are all keyed the same, to my relief. I love that the battery lock is made from a high quality 3/16 steel, with powder coated baked finish. I think it is resistant to corrosion and chemicals which makes it more durable than paint or other liquid coatings. It keeps the rust away and extends the life of the shackle itself.

Having well-built steel locks doesn’t mean it has to be heavy. This does not add unnecessary weight to the tow hitch which is a huge plus. When I need access, I only use my padlock key and service the batteries. This kind of ease is clearly not available in any battery shackles in the market nowadays. However, I don’t like that it is made in China.

  • Protects battery from theft
  • Made of solid steel construction
  • Easy to install and no tools required
  • Built by certified welders in the US
  • One of the locks had the guts out
If you are like me who won’t settle for anything but the best, I can guarantee that this battery shackle is worth the amount you’ll pay for an extra layer of security. So far, we still have the same battery.

7. Powerhouse 13034 Battery Box

I have been looking for a durable battery box for days and ta-da! I found this Powerhouse 13034 Battery Box online. I must say this is top-notch for my RV!

After trying several battery boxes in the past, this came close to what is ideal. What sets it apart from other battery boxes is that it comes with a fancy strap and has two clamps to secure the strap. The lovely strap style design really helps secure the top lid, the battery inside, and the bottom of the box. Worry no more!

Should the battery get damaged or worn out, gaining access is as simple as removing the strap from the buckle and lifting the lid off. Making it easy-peasy to remove the battery when charging and relocating too. I think the polypropylene plastic construction will resist deterioration from rain, saltwater and battery leaks. Having this said, this is a perfect match for people like me who enjoy camping and outdoor activities.

What I didn’t like about my purchase was when I received the package, it was incomplete! I had to call their customer service and ask for the other parts. They were nice to talk to, but why ship an incomplete package in the first place.

In any case, the battery box worked fine once I got everything. I noticed that the lid has a cutout on each side, which corresponds to the positive and negative posts on the battery. I was able to run my cables out nice and neat.

Another feature I like is the vented design of this battery box. It does allow potentially explosive battery fumes to escape. Yeah, think about safety!

The kit came with mounting brackets and a button head Philips screws, ideal to permanently mount on your camper or your trailer. You’ll need to get a self-tapping screw first to securely mount it.

  • Made of high-quality polypropylene plastic
  • Can withstand impact and battery acid
  • Lightweight and good value for money
  • Includes strap and mounting brackets with screws
  • Securing the strap can be tricky
The Powerhouse battery box is indeed an ultimate solution for protecting my batteries. If you are looking for one, add this to your cart now. You don’t want to miss out on this second to none product!

8. VMAX VBB-24-31 Adjustable Battery Box

If you are looking for an investment that can provide an extra layer of protection on winter snow and the summer heat, then this one from VMAX can be suitable for you. I can say, this is the most durable battery box I have ever used.

Compared to my previous boxes, what I like is that it has a solid and tough material, the impact resistance to -30°F and 93°C heat stability make it sturdy and will last longer than expected. Since it is adjustable to Groups 24, 27, 31, I can store my portable charger and extra battery in it.

I bring it to our camping trips too. Even my youngest son was able to easily replace the worn-out battery because of its QuickLock cover. He said it was an easy-on and easy-off cover. I often lose battery covers but since there are hold-down holes molded in, to reinforce the handle I get to keep the entire box. The handles are of nice, wide grip too. I have large hands and I was surprised that there’s enough room for them. The older battery box I had has slim handles and it was a pain to carry around.

I usually store my lead batteries in the garage and some of them got totally ruined due to dust and spillage. It was a total waste. Since I started using these battery boxes, I was able to save money and contain the harmful acid leaks inside.

It’s not very heavy, but it’s sturdy enough. Also, it didn’t come with mounting brackets so I had to purchase these separately, which was a bummer.

  • Fits battery group sizes 24 to 31
  • Meets the requirements of the U.S. Coast Guard
  • Impenetrable to acid, oil, solvents, and gasoline
  • Does not rust
  • UV-protected
  • Doesn’t have mounting bracket and screws
I would definitely purchase this battery box again if I need another one. I am very pleased because it does the job well!

9. LaVanture Products MA102BS Battery Box

The old battery boxes I owned were mounted outside my RV and since it’s there all season, imagine the tons of grime and corrosion it accumulated. That’s when I decided to move them inside and use the white Lavanture battery boxes. Since I don’t have the know-how on vent installation, with the help of my brother I was able to install it fast and easy. I only used vent hoses, vent louvers, and some basic plumbing supplies.

I really love how it looked inside my RV, it was nice and clean. The batteries are still cozy and warm. With these boxes, they are protected from the harsh elements outside. Also, saves me time and energy on cleaning since it is low maintenance.

What I like the most about this LaVanture battery box is, it safely vents dangerous hydrogen gases from the box compartment to the outside. I find it necessary because the RV is pretty enclosed. Take note, that if not properly vented, the hydrogen build-up can cause damage to the battery system or worse may even explode. That would be a disaster!

The biggest downside to this RV vented battery box is that it really just includes the battery box, it does not come with the hardware! No screws and nuts were included, so I had to source these myself.

  • Battery Box is top vented
  • Installing the box is fairly simple
  • Constructed using tough Polypropylene plastic
  • Units are installed and vented outside the unit for easy access
  • Doesn’t include the locks and screws
Nevertheless, these battery boxes are still in great shape securing the batteries inside. I sure hope they would make their customers’ lives easier by providing the hardware though. Otherwise, so far, so good.

10. RV Armor Battery Lock Box

I believe that one of the factors which contribute to a higher life expectancy of batteries is how they are stored. And I’m happy to run across this affordable battery lockbox. This is a beauty! My 6-volt golf cart battery fits in nicely and it matches the color of my travel trailer.

My wife and I love camping, so I replaced my old plastic battery box with this aluminum diamond plated lockbox. This is a winning feature because it doesn’t rust and is remarkably resilient to wear. I like how it does not trap moisture or fumes. It is holding up pretty well after 3 years of dry camping at random state parks. I can’t see any damage at all.

It was agitating to hear news about people stealing batteries around, right? So I thought I have to keep the batteries safe and secure especially on camping trips. This is another reason why I recommend this battery box to everyone. I love that this is engineered to have the most secure lid which is completely reassuring when I think about theft.

Looking at the outside, it is such a stunner! There is a tab on the side to lock it and on the upper part is a thumb hole to slide the top cover open. I got a heavy lock for additional security. It is tidy on the inside, there are slots on the bottom to hold down the batteries. It is a nice feature to keep the batteries in place especially on bumpy roads. It also has two aluminum pieces to lift up the battery off the floor. On the back part are three optional knockouts to run battery cables which are very nice.

What I don’t appreciate about this box is that a little water can get inside during a really heavy downpour. What I did was cover it extra with plastic, especially the lid part. I obviously can’t do that while on the road though.

  • Made of corrosion-resistant material
  • The aluminum diamond plate doesn’t rust easily
  • Three optional knock-out holes for cables
  • Easy to install using the pre-drilled holes
  • The box itself is not waterproof
Despite that, I still think the design is perfect for a secure travel trailer battery storage. The design is great and secure. I would definitely purchase this camper battery box again if needed.

What to Look for When Buying an RV Battery Box


Batteries are some of the important parts of an RV. Without it, you won’t be able to start the engine or run basic appliances and lights inside the cabin. Now, if you want your battery to last long, you need to protect it against destructive elements using a tough box. This box is usually referred to as a battery box.

However, buying a camper battery box is not as easy as it seems. If this is your first time embarking on such a mission, you will surely get overwhelmed with a bulk of information regarding this product.

If you want to get the best RV battery box successfully, here are some things that you need to bear in mind when shopping:

  • What type of battery are you using? Before searching for a battery box, you need to understand the batteries itself.There are two types of batteries in your RV: one is for starting the engine and the other one is for deep cycle needs such as running the lights and water while the main engine is turned off. Batteries for starting the engine are typically 12-volts and should never be used for deep cycling or storing energy for everyday RV use. These types of batteries are also referred to as coach batteries.If you are more concerned about your everyday RV energy consumption, you need to get yourself two to three stronger 12-volt batteries. However, if you want your deep cycle battery to be able to start your engine as well, getting a marine battery is highly suggested.
  • What are the features of the battery box? These are definitely the selling point of any battery box brand that you will see in the market. The best thing that you can do with this issue is to simply compare each one based on the descriptions provided.Here are some of the features that you should be looking for in a battery box:
  • Durability. As we all know, batteries are pretty solid. If we are to house it on a flimsy plastic box, it will surely have a high chance of smashing it during sudden breaks. Another instance is when a thief wants to steal your battery. One simple smash of a hard object will give them access to your precious battery.This is the reason why you should choose a durable battery box for your RV battery. If your battery box is sturdy, it will definitely last a very long time. Moreover, it can withstand heavy blows on it in case of accidents.
  • Security. A simple box can house a battery, no doubt about that. However, if it lacks the necessary security features such as locking mechanisms, thieves will have an easy time taking it away from you. In addition, your battery will surely fall on the road if the box that contains it does not have a good lock.If you need a battery box, look for the one that has a sufficient locking system especially if you mean to store your battery outside of your RV. Not only will it deter theft, but it can also secure your battery in such a way that it will make sure that the battery stays firmly inside, ensuring a firm power connection all the time.
  • Convenience. Battery boxes should have strong handles or straps in order to conveniently lift them. Without these features, you would surely have a hard time lifting and transferring it to a safe location.When buying a battery box for a trailer, make sure that you look for the ones which can provide a good grip to avoid accidentally dropping the battery whenever you move it from one place to another. Look for the ones that have a good handle from either both sides of the box or on the RV battery cover.

Once you know all of these features, you can look for them on these types of battery boxes:

Plain box. This is the conventional plastic or metallic battery box. It is lightweight and usually comes in black color. It doesn’t have a vent or a hole to let in air and out, except for the top portion where the lid is placed. This is the cheapest choice in the mix because it can be manufactured easily.

Vented battery box for RV. This type of battery box has a tubular vent that allows air to flow. Moreover, this design also allows you to install the batteries inside the RV, giving you instant access any time you need it.

Custom RV battery box. As the name implies, this is a box with modified or customized features. The purpose of the modifications is to accommodate various specifications that are not present in the conventional battery boxes.

Knowing all of these things is very important when shopping for RV battery boxes. This way, you will be able to locate the right product that is highly suited for your needs.

Other Important Factors to Consider


What is a battery box for RV?

A battery box is a piece of contraption that is used to protect the battery against exposure to elements such as dust, liquid, and ultraviolet rays. It is usually made of plastic or metal casing that is sturdy enough to withstand external pressure that would cause it to break.

If you can’t find satisfaction with the existing battery box designs, you can always make one. Through your own DIY project, you can ensure that the battery box will pass your own strict quality, security, and convenience standards.

How does it work?

Battery boxes work by housing or isolating the batteries. This way, the battery is protected against unintentional damages during travels such as dust, ultraviolet rays, fluids such as water and oil. Aside from that, the battery box can help prevent the batteries from being exposed to other leaking batteries. The acid from the defective battery won’t reach the perfectly working one.

It also protects the battery inside against other physical damages during transition or movement on the road. As we all know, it is impossible to completely stop the items on the RV from moving or shifting during travel. With this, you can help your battery from being damaged.

What are the different types of RV battery boxes?

There is no specific design for battery boxes. They are all designed according to your needs. Seasoned RV owners may consider choosing the right battery box an easy task, but a complete beginner will find it overwhelming.

There are basically four types of RV battery boxes to choose from. These are:

  • Plain battery box. A plain battery box is made of plastic or metal. This is by far the cheapest choice. It is typically lightweight and plain looking. A plastic battery box can be placed inside the RV while the metal one can be bolted or welded outside.
  • RV vented battery box. A vented battery box has a designated hole or tube to properly ventilate the battery inside. If your RV batteries are constantly working, this is the right box for you. This type of battery box can also help you prolong the life of your batteries.
  • Modified battery box. Modified battery boxes usually come from preexisting models of battery boxes. For instance, if you wish to add a certain feature such as a locking mechanism or a vent on a plain box, this is the type that you should be looking for.
  • DIY RV battery box. If you have no means of getting the first three types of RV battery boxes, or you just simply want to make your own, then the DIY box is definitely for you. By doing it yourself, you can add features according to your needs. Features such as external locks, bolts, etc can be done if you design the whole thing yourself. In addition, you will have the freedom to choose the best material for your own battery box.

Imagine this: a strong but lightweight metallic dual RV battery box with an excellent locking mechanism. Not only will you be able to store your batteries safely but also other related items such as tools, jacks, and power tools as well.

Although not another type, any of the aforementioned box types can also be modified to become a battery box for 2 12v batteries, which is then called a double battery box, or dual battery box.

Why do you need a battery box for RV?

Amateur or beginner RV owners certainly have a lot of things to learn about RVing. This includes choosing the right battery box for RV. These days, there are numerous choices in the market. But if this is really your first time encountering these products, you will definitely have a hard time knowing why you need one in the first place.

In case you are still undecided, here are some of the benefits that you’ll get if you get a battery box for your RV:

  • It protects the battery against external damages. As we all know, RVs are famously known for being cramped. Because of the limited space inside the trailer, some items have high chances of bumping the battery during transit. In addition, the battery might get dislodged during an accident, which may severely disrupt the energy supply inside the RV. If you have a battery box, the battery will have a safe space where it can operate uninterrupted.
  • It declutters the RV. Having a trustworthy battery box organizes your RV. Imagine the battery being safely out of the way of other items, especially the little ones such as tools, hydraulic jacks, among other things.
  • It prevents your battery from being stolen. Battery boxes lock away your battery, thus protecting it against theft. Among other things when it comes to RVing, batteries are a precious source of energy, especially if there are no hookups available in the camping area. By placing the battery in a box, you can be sure that the thieves won’t be having an easy time opening it.

Knowing the benefits of having a good battery box will give you an idea about the right brand that you should pick for your RV. Aside from that, it gives you an idea about how to look for specific features that will be useful for you.

Frequently Asked Questions (FAQs)


How to attach the battery box to the trailer?

Attaching the battery box to the trailer is one way of making sure it doesn’t move during transit. This can also prevent the batteries from colliding with one another.

There are many ways to attach the battery box to the trailer. First is by bolting the battery box. Here’s how:

  • Determine the location. Where is your power source located? It is highly suggested that you place the battery box near the unit. This way, you can easily access the battery if there is an issue.
  • Use bolts to lock the box in place. Bolts will make sure that the battery box will not move or shift while you are driving the RV. Four 2-inch bolts are enough to secure the box in place.

Another way of securing the box is by using an industrial-strength Velcro. With this method, you won’t need to use power tools to drill a hole inside your RV.

Here’s how you can do it:

  • Determine the location. Once again, the location is the key. If the battery box is near the power unit, accessing it will be a breeze if technical difficulty arises while you are using it. Glue the first side of the Velcro on the RV floor. Make sure that you clean the surface first to ensure maximum adhesion.
  • Cut an opening inside the battery box. This is to allow the Velcro to pass through the battery box. Let it run on the underside of the box.
  • Once the other side of the Velcro is in place, stick the box on the Velcro on the floor.

You have to keep in mind though, that Velcro’s adhesion wears out over time. This particular method of attaching the battery box should only be temporary.

Why do RV battery boxes need to be vented?

RV battery boxes need ventilation because the battery charging process produces highly combustible and often explosive hydrogen gas. It is not an issue in the initial charging phases. The issue is overcharging, which can “boil” the solution and accelerate hydrogen gas formation.

Hydrogen gas formation is not a problem if one has a sealed battery or there are no leaks in the system. It should not also be a concern if the metal battery box for RV is far from ignitable sources.

Venting the RV battery box is necessary to allow any leaking hydrogen gas to escape and dissipate safely into the air.

Venting the battery box is a must for lead-acid batteries. However, a lithium RV battery box does not require venting because lithium-iron-phosphate power blocks do not produce and release hydrogen gas when overcharged. However, people must use only the correct charger to ensure lithium battery safety.

How do I secure my RV battery box?

People can secure their RV battery boxes in a few ways.

  1. Choose a secure battery enclosure. For example, a metal lockable battery box is safer than a plastic container because it is more difficult to tamper with.
  2. Mount the battery compartment in a hidden area of the camper and secure it with chains or similar devices.

For example, RV owners can choose a trailer tongue battery box to keep it hidden from would-be thieves. Some brands allow battery box installation under the motorhome carriage, improving stealth and ensuring battery and box security.

Does a battery box need ventilation?

Yes, a sealed RV battery box needs ventilation to facilitate safe hydrogen gas dissipation into the air. Although a well-sealed battery can keep the hydrogen gas from escaping, overcharging can boil the solution and produce sufficient pressure to burst the power block.

A 10% increase in hydrogen gas formation can cause an explosion. It can also puncture the battery, causing the gas to escape. Any spark nearby can ignite the gas and damage the battery, the surrounding components, or the motorhome.

How can I ventilate my RV battery box?

RV owners can ventilate their RV battery boxes in two ways.

  1. Add a hole on the top and bottom panels of the battery enclosure. One can use a handheld drill to create a 25 mm opening to allow hydrogen gas to dissipate safely into the air.
  2. Buy a travel trailer battery box with built-in ventilation. These products might be a little more expensive than a conventional battery enclosure. However, they are suitable for RV owners who want a vented battery box without doing any modifications.

Is a metal battery box better than polypropylene or other materials?

A metal RV battery box is better than other materials if one requires optimum battery security. Stainless steel, aluminum, and steel are robust and durable materials. Unfortunately, they are expensive and can corrode because of hydrogen gas and lead-acid exposure. Metal can also get energized and require insulation in cold weather.

On the other hand, polyurethane battery enclosures are perfect for RV owners who want a lightweight solution. Some brands offer heavy-duty PU that can be stronger than metal, making them more durable.

It is also an excellent insulating material, resists corrosion, and is more affordable than metal battery boxes. Unfortunately, some PU products are susceptible to UV damage, making them brittle.

How to care for and clean these battery boxes?

Caring for your RV trailer battery box is a task that you should accomplish regularly. This is to ensure that the battery box doesn’t sustain any damage like cracks along the road.

Here is how you can clean and maintain your RV battery storage box:

  • Disconnect the battery before cleaning the box. You have to remember that a battery is a device that stores electricity. If you are going to clean the battery box, make sure that the battery is disconnected first to prevent getting electrocuted.
  • Use a damp cloth to wipe off dirt build-up. Avoid using an excessively wet cloth to prevent water from reaching the battery. A damp cloth is enough to remove the dirt and any kind of residue on the surface of the battery box.
  • Check if there are cracks on it. Cracks can shorten the life of the battery box. See if there are cracks in the body. If you found one, use epoxy or duct tape to fix it. This will prevent the crack from getting bigger.

If there is any issue, be sure to check the manual to determine the proper way of taking care of your battery box.


Although some people allow their batteries to be exposed to all the elements, it is not a good practice if you want yours to last a long time. An RV battery box is not really a heavy investment if you look at it this way.

Your own preference will determine the best RV battery boxes that you will need. This is the reason why you should learn more about this product more in order to choose the right one. With the reviews above, you will get an idea about each brand’s performance. Also, you can compare the information provided above with your own observation. Are the descriptions of the features of each brand of battery boxes match with your own inspection? This way, you can decide whether that particular brand of the battery box will be useful for your needs or not.

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