Choosing the right way to secure your power source is about balancing physical theft prevention against simple movement control. Some options provide heavy steel shells to stop thieves, while others focus purely on holding a box steady during bumpy travel. Your choice depends on whether you need a high-security lock or a basic strap.
Best overall: Battery Shackle RV Lock, which uses 3/16-inch steel and includes three keyed-alike locks for a robust, all-in-one security setup that fits standard group 24 and 27 battery sizes. Best for anti-theft: RV Locking Battery Strap, which features a patented bracket system designed to bolt directly to your trailer tongue to discourage battery removal while you’re away. Best for simple holding: Camco Battery Box Strap, which offers a straightforward, UV-stabilized polymer solution for those who only need to ensure their battery box stays put during routine transit.
The rest of this guide is for RV owners looking to secure their battery setups against either theft or road vibrations.
How We Picked
To make our list, a product had to clearly state its material composition, provide exact dimensions or compatibility notes, and include a full list of mounting hardware. We removed any products that lacked clear installation instructions or failed to specify the type of metal or webbing used in their construction. Our focus remained on verified specifications provided by the manufacturers to ensure you get exactly what is described.
All 10 products side by side — scroll sideways to see every column.
| Top Pick | Best for Travel Trailers | Also Great | Best for Cargo | Best for Camco Boxes | Best for Outdoor Use | Best for Quick Setups | Best for Securing Gear | Best for Bulk Items | ||
| Preview |  |  |  |  |  |  |  |  |  |  |
|---|---|---|---|---|---|---|---|---|---|---|
| Product | Battery Shackle RV Lock | RV Locking Battery Strap | Attwood 9013A3 Strap Kit | EXVITAL Stainless Strap Kit | Camco Battery Box Strap | GOODTIMES Battery Strap Kit | Diamond Plate Battery Box | Universal Battery Hold Down | Anti-Theft Ratchet Straps | Battery Tie Down Kit |
| Brand | Batteryshackle | B&D RV Battery Lock | attwood | Ruibapa | Camco | Goodtimes | RV Armor | Aokdom | JB STRONG | ZRruowin |
| Best for | Top Pick | Best for Travel Trailers | Also Great | Best for Cargo | Best for Camco Boxes | Best for Outdoor Use | — | Best for Quick Setups | Best for Securing Gear | Best for Bulk Items |
| The listing says | Fits group 24 and 27 batteries up to 16.5" long Tool-free install in 2 minutes | Secures RV batteries against theft Tool-free install in under a minute | Includes battery box mounting hardware 54-inch strap for box 9084 | Includes 2 1"x4ft straps and stainless hardware Durable wear-resistant nylon construction | Secures automotive, RV and marine batteries Compatible with all Camco battery boxes | Includes 2 78-inch straps and stainless hardware Durable 600D nylon webbing | Semi-gloss black diamond plate aluminum Laser cut for precision | High tensile strength polypropylene webbing Adjustable buckle for quick release | 2 pack with keyed locks Tangle-free design | Secures batteries, coolers and fuel tanks 6.5ft heavy duty nylon webbing |
| More information | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon |
1. Battery Shackle RV Lock
Best for: Securely locking down group 24 and 27 batteries.
This unit stands out because it combines heavy-duty 3/16-inch steel with a complete locking system right out of the box. Because it’s laser-cut and powder-coated, it offers a clean look that resists the elements while adding a physical barrier against theft. You can expect a quick installation process that requires no tools, making it a convenient upgrade for most standard trailer setups.
If your battery box exceeds 16.5 inches in length, this lock won’t fit. Always measure your current box before purchasing. The listing doesn’t mention how to verify battery group size.
The inclusion of three keyed-alike 2-inch locks means you can secure multiple points without juggling different keys. Because the steel is precision laser-cut and finished with a baked powder coat, it holds up against the outdoor conditions common to RVs and boat trailers.
The workmanship guarantee covers the steel frame for life. If you notice any defect in the welds or the laser-cut edges, the manufacturer replaces the unit. Keep in mind that the 3/16-inch steel adds weight to your tongue or trailer frame.
Pros
- Includes three durable keyed-alike locks.
- Heavy-duty steel construction provides maximum structural integrity.
- Fast, tool-free two-minute installation.
Cons
- Limited to specific group 24/27 sizes.
- Steel construction adds significant weight.
2. RV Locking Battery Strap Replacement for Standard 12V Trailer Battery
Best for: Discouraging theft on travel trailers and campers.
This locking strap system uses a patented bracket design that anchors your battery box directly to the trailer tongue structure. By using 3/16-inch American steel, it provides a sturdy defense against unauthorized removal. It’s specifically shaped for standard 12-volt battery boxes, ensuring a snug fit that keeps your power source protected while you’re camping or storing your vehicle.
If your battery box is a 12-volt tall or a 6-volt configuration, this strap won’t fit. It’s built exclusively for standard group 24 and group 27 single battery boxes. Before buying, measure your box against the 10 3/8-inch height and 8 5/8-inch width of the bracket to ensure clearance.
Installation takes less than a minute and requires no tools. However, many users overlook the fact that the disc-style padlock isn’t included in the box. If you don’t have a compatible disc lock on hand, your battery remains vulnerable until you secure one. Relying on a standard shackle lock is a mistake; the bracket is engineered specifically for the geometry of a disc-style padlock to prevent bolt cutters from reaching the mechanism.
Pros
- Patented bracket system secures to tongue.
- Durable powder-coated American steel build.
- Designed specifically to discourage battery theft.
Cons
- Padlock not included with purchase.
- Fits only standard 12V battery boxes.
3. attwood 9013A3 Battery Box Hold-Down Strap Kit
Best for: Securing battery box 9084 models.
This kit provides a long-reach solution for those who need to secure their battery box firmly in place. At 54 inches long, the woven polypropylene strap is resistant to battery acid, which is a vital feature for long-term reliability in an RV battery compartment. It includes the necessary footman clamps and four #8, 3/4-inch screws, making it a complete package for basic hold-down needs.
If your battery box sits on a flat, vibration-prone surface, use this kit to prevent sliding. The firm-grip buckles ensure tension remains consistent across the box. If you notice the strap beginning to fray after years of exposure, replace it immediately to maintain structural integrity.
This strap isn’t for those who need high-security anti-theft features, as it’s designed for containment rather than locking. It will keep your box from sliding, but it doesn’t prevent someone from simply unbuckling the strap.
Pros
- Resistant to corrosive battery acid.
- Includes all necessary mounting hardware.
- Long 54-inch strap for flexibility.
Cons
- No anti-theft locking mechanism.
- Polypropylene may fray over many years.
4. EXVITAL Stainless Strap Kit
Best for: Marine and high-corrosion environments.
Using stainless steel brackets and screws, this kit is manufactured from laser-cut 3/16-inch steel with a durable powder-coat finish. The nylon webbing is denser than standard straps, providing high wear resistance when securing heavy battery boxes. The gear-design cam buckle allows for quick adjustments, ensuring that your battery stays tight even after miles of travel on rough roads.
You should prioritize this kit when the primary concern is preventing oxidation. Because the buckles, brackets, and screws are all stainless steel, they won’t rust in damp or saltwater environments. If you’re mounting a battery in an open trailer or a boat, this material choice is essential for long-term structural integrity.
This kit isn’t for users who prefer a single, long strap, as it comes in two separate sets. Each strap measures exactly 1 inch by 4 feet. If you’re looking for one continuous length of webbing to wrap around a large container, you might find the two-piece setup requires more planning during installation.
If your mounting surface is thin, ensure you have enough clearance for the 65mm brackets. Using the wrong mounting surface can lead to the screws pulling loose under heavy vibration. Always check that the gear-teeth on the buckle are free of debris before tightening to ensure a secure lock.
Pros
- Stainless steel parts prevent rust.
- Durable, dense nylon webbing material.
- Quick-adjust cam buckle design.
Cons
- Requires installation of multiple brackets.
- The dual-component design may limit some configurations.
5. Camco RV/Marine Battery Box Strap with Buckle
Best for: Universal compatibility with Camco boxes.
This is a simple, no-nonsense strap designed to keep your battery box safe during travel. The UV-stabilized polymer webbing ensures that the sun won’t weaken the strap. Its side-release buckle makes it incredibly easy to connect or remove when you need to access your battery for maintenance or charging.
This strap isn’t for people who need extra security features like locks or heavy steel brackets. It’s strictly a hold-down device intended to prevent your box from shifting, not to stop a thief from taking it.
Pros
- UV-stabilized material resists sun damage.
- Universal fit for Camco boxes.
- Easy-to-use side release buckle.
Cons
- Offers no anti-theft protection.
- Basic design lacks extra hardware.
6. GOODTIMES Battery Box Hold-Down Strap Kit
Best for: Heavy-duty, long-term outdoor use.
These straps are made from 600D nylon webbing, which resists UV degradation. The hardware is manufactured from laser-cut 3/16-inch steel with a durable powder-coat finish. Because the straps are 78 inches long, you have ample length to secure large battery boxes or oversized equipment. You can easily cut the nylon to your specific length, but be sure to seal the fresh edge with a flame to prevent fraying.
This kit isn’t for those seeking a lightweight, minimalist solution. The stainless steel buckles add significant mass compared to plastic alternatives. Use these if you prioritize permanent, corrosion-free security over weight savings.
When installing, use the included nine stainless screws to anchor the four-eye mounts. If you’re mounting to a thin plastic battery box, ensure you use a backing plate or washers to prevent the screws from pulling through the plastic under vibration.
Pros
- 316 stainless steel resists rust in salt water.
- Long 78-inch straps accommodate large gear.
- Durable 600D nylon webbing resists UV damage.
Cons
- Heavier than standard plastic buckles.
- Requires cutting and heat-sealing for a clean fit.
- Hardware requires solid mounting points to avoid cracking thin plastic boxes.
7. 27″ RV Battery Lock Box
This aluminum diamond plate box provides a physical shell that keeps your battery entirely hidden and protected. Because it’s laser-cut, the fit is precise, and the semi-gloss black finish gives your trailer a rugged, professional look. It includes three optional knock-out holes, allowing you to route cables in the way that best suits your specific trailer configuration.
Use this box if you prioritize long-term security and weather shielding over weight savings. The corrosion-resistant aluminum material is designed to withstand harsh road conditions that would degrade plastic alternatives.
This box is a large, permanent installation. It requires more effort to mount than a simple strap, and it occupies a fixed amount of space on your trailer tongue. Before purchasing, measure your available tongue space to ensure the 27-inch frame fits without interfering with your jack or propane tanks.
If you’re mounting this to a steel frame, use the included self-tapping bolts to secure the base directly to the frame’s depth. If your trailer frame is aluminum, ensure you use compatible hardware to prevent galvanic corrosion between the two metals. Proper installation takes a short amount of time, but it ensures the box remains stable during high-speed travel.
8. Universal Battery Hold Down
Best for: Quick, simple hold-down setups.
This strap uses high-tensile polypropylene webbing that’s reinforced to prevent fraying. It’s designed to be highly portable, folding down to just 3.45 by 1.5 inches for easy storage when not in use. The adjustable buckle allows for a very fast release, which is helpful if you frequently need to remove your battery for external charging or winter storage.
If your battery box is standard size, the 39-inch length provides enough slack to secure most car, SUV, truck, or marine setups. However, don’t rely on this strap for heavy-duty off-road vibrations or permanent mounting. While the material boasts 11,000 lbs of working strength, it lacks the rigid steel structure required for high-impact environments.
This product isn’t for users who need a permanent, high-security mount. While it’s strong enough to hold a battery tray in place, it doesn’t offer any locking mechanism to prevent theft.
Pros
- Highly portable and compact design.
- Reinforced stitching prevents fraying.
- Very fast, simple buckle operation.
Cons
- No locking feature for security.
9. Anti-Theft Ratchet Straps
Best for: Securing gear with a keyed lock.
These ratchet straps are designed with cut-resistant webbing and a built-in keyed lock, making them a unique hybrid between a standard tie-down and a security device. The ergonomic grip makes it easy to tighten the strap firmly, and the ratchet mechanism ensures it stays tight even if your cargo shifts slightly during transit. They’re rated for 500 lbs, providing plenty of strength for battery boxes, ATVs, kayaks, or motorcycles.
If you’re securing high-value items in an open truck bed or on a roof rack, the keyed lock acts as a primary deterrent against opportunistic theft. However, these straps aren’t for users who want to avoid keys. You must keep track of the provided keys to unlock the strap at your destination. If you’re prone to losing small keys, you might prefer a non-locking strap or a permanent steel lock.
Use these straps when your cargo will be left unattended in public spaces. If you’re simply transporting gear from one garage to another, the locking mechanism requires extra time to engage and disengage. Always ensure the webbing is pulled taut before engaging the lock to prevent slack from developing during travel.
Pros
- Cut-resistant webbing adds security.
- Integrated keyed locking mechanism.
- Comfortable ergonomic ratchet handle.
- Tangle-free design for smooth operation.
Cons
- Requires keeping track of keys.
- Ratchet mechanism is more complex than standard straps.
- Not intended for loads exceeding 500 lbs.
10. 2 Sets 1″x 78″(6.5ft) Battery Tie Down Strap kit
Best for: Bulk securing of multiple items.
This kit includes two 6.5-foot straps and stainless steel eye mounts, making it very versatile for securing not just batteries, but also coolers and fuel tanks. The gear-design cam buckle ensures the strap never slips once tightened. Because the hardware is stainless steel, you don’t have to worry about rust, even if you’re using this kit on a boat or a trailer parked near the coast.
If you’re mounting these to a deck or trailer floor, use the included stainless steel eye straps.
This kit isn’t for those who only need to secure a single, small battery. The 6.5-foot length is generous, which is great for flexibility but might lead to excess strap material if you’re using it in a very confined space. If you find the strap is too long for your specific application, cut it to your desired length. The nylon webbing is durable enough that it won’t fray easily once trimmed.
Pros
- Very long 6.5-foot straps.
- Stainless steel hardware prevents rust.
- Sturdy gear-design cam buckle.
Cons
- Excess length requires careful tucking.
- Requires drilling for eye mounts.
How to Choose in Sixty Seconds
Which security feature is most important?
You must decide between physical theft deterrence and simple load stability. If your RV sits in an unsecured area, a steel lock like the Battery Shackle RV Lock is essential to physically prevent battery removal. However, if your only concern is keeping the box from bouncing off the tongue during travel, a high-quality nylon strap with stainless steel buckles, such as the GOODTIMES Battery Strap Kit, is sufficient. Always verify your local Department of Transportation cargo securement rules to ensure your method meets safety standards for towed vehicles. Never rely on a basic strap if your primary goal is preventing theft, as these can be cut in seconds.
How do I know if it fits my box?
Measure your battery box at its widest and tallest points before ordering. Most straps are universal, but locking brackets are often designed for specific group sizes like 24 or 27. If you use an oversized or custom box, a fixed steel frame will likely be too small, and you should stick to adjustable strap kits instead. Ensure your chosen mount has enough clearance for the cables coming out of the box. Some battery boxes have specific mounting points for straps, while others require you to drill holes for eye mounts. Always confirm if the kit includes screws, as some require you to supply your own hardware for mounting to the trailer tongue.
The Battery Shackle RV Lock offers enhanced security, while the Camco Battery Box Strap provides a straightforward solution for standard battery boxes. Before purchasing, verify your battery box dimensions and trailer tongue space to ensure a proper fit. Check your specific battery box compatibility to determine the best option for your setup.
