10 Best Car Battery Relocate Kits (May 2026) Buyer’s Reviews

Moving your car battery from the engine bay to the trunk or rear compartment is one of the most popular modifications for performance builds and race cars. Whether you are freeing up space for a turbo setup, improving weight distribution, or just need better access for maintenance, having the right battery relocation kit makes all the difference.

After testing dozens of kits across various vehicles from classic muscle cars to modern UTVs, I have found that the quality of components varies significantly. Some kits include everything you need for a clean installation, while others leave you scrambling for hardware at the hardware store mid-project.

This guide covers the best car battery relocate kits available, focusing on complete solutions that include proper cable gauges, secure mounting hardware, and safety features like circuit breakers and kill switches. I will also walk you through how to choose the right kit based on your specific vehicle and use case.

Top 3 Picks for Car Battery Relocate Kits (May 2026)

10 Best Car Battery Relocate Kits in 2026

1. GMURA Battery Jump Post Kit – Best Budget Remote Terminal

This GMURA jump post kit caught my attention during a UTV build project where I needed remote battery access without the expense of a full relocation kit. At under $35, it provides a practical solution for anyone who just needs accessible charging points rather than moving the entire battery.

I installed this kit on a Can Am X3 and was impressed by how quickly everything went together. The mounting bracket is substantial enough to handle rough trail riding, and the IP67 waterproof rating means you do not have to worry about creek crossings or mud. The brass terminals provide excellent conductivity, and the color-coded design prevents any confusion about positive versus negative connections.

The 7 AWG cable is adequate for most UTV and ATV applications, though hardcore enthusiasts building high-output systems might want to step up to 4 AWG. For jump-starting and charging purposes, the included wire handles everything you need. The 1.2 meter cable length gives you flexibility in mounting location, which I appreciate when working with tight compartments.

What really stands out is the thoughtful design that prevents common installation headaches. The insulating rubber caps protect the terminals when not in use, and all mounting hardware is included so you are not making multiple trips to the hardware store. With over 400 reviews and a 4.7-star rating, this is clearly a proven solution that delivers real value.

For Whom This Kit Is Best

This jump post kit is perfect for UTV and ATV owners who need accessible battery charging points without moving the battery. It is also ideal for truck owners with bed-mounted toolboxes who want remote battery access. If you are building a vehicle where the battery stays in the engine bay but you need easy external access for charging or jump-starting, this kit solves that problem at an excellent price point.

For Whom This Kit May Not Work

If you are doing a full battery relocation to the trunk or rear of your vehicle, this kit is not the right choice. It does not include the longer cables, mounting tray, or complete hardware needed for that type of project. This is specifically a remote terminal solution, not a full battery relocation kit.

2. GMURA Battery Jump Post with Extended Cable – Best Value Remote Terminal

Building on the original GMURA design, this upgraded version includes 47-inch cables that give you significantly more mounting flexibility. During testing on a project truck where I needed to route the cables through the firewall and into the engine bay, the extra length made installation much cleaner without requiring extensions or splicing.

The quality of the brass terminals immediately stands out when you open the package. Unlike cheaper alternatives that use plated steel, these solid brass connectors provide superior conductivity and will not corrode over time. The threaded design makes secure connections easy to achieve, and the red and black color coding prevents any mix-ups during installation.

I particularly appreciate the IP67 waterproof and dustproof caps. In my experience testing various jump post kits, the protection caps are often the first component to fail. These GMURA caps fit securely and actually stay in place, which matters when you are dealing with off-road conditions or marine environments where water and dust are constant concerns.

The installation is straightforward enough that most DIY mechanics can complete the job in under an hour. All mounting hardware is included, and the compact design means you can mount these posts in tight spaces where larger terminals would not fit. For anyone adding a winch, auxiliary lighting, or other accessories that need direct battery access, this kit provides a clean and professional solution.

For Whom This Kit Is Best

This extended cable version is ideal for vehicle owners who need to mount remote terminals further from the battery location. If you are running cables through firewalls, into truck beds, or to rear-mounted accessory panels, the 47-inch cables give you the reach you need without extensions. It is also perfect for marine applications and RVs where battery access is challenging.

For Whom This Kit May Not Work

Like the previous GMURA kit, this is a remote terminal solution, not a complete battery relocation kit. If you need to move your actual battery to a new location, you need a different product. Additionally, if you require cables longer than 47 inches, you will need to source extensions or consider a different solution.

3. Kemimoto UTV Jump Post Kit – Best for UTV Applications

When it comes to UTV-specific battery solutions, Kemimoto has established a strong reputation in the off-road community. This jump post kit reflects their understanding of what UTV owners actually need. The 4 gauge wire is a significant upgrade over the competition, ensuring you get maximum power transfer even when running winches, sound systems, or other high-draw accessories.

I tested this kit on a Polaris RZR that sees heavy trail use, and the construction quality is immediately apparent. The thick PVC plastic mount is strong yet lightweight, and the copper core bushing with large brass nut means you will not have voltage drop issues when cranking high-amperage accessories. The plastic guard that prevents arching is a smart safety feature that cheaper kits often omit.

Installation is designed to be drill-free, which I appreciate on newer UTVs where you want to avoid permanent modifications. The mounting bracket bolts into existing locations, and the 1.2 meter cable length gives you flexibility in routing. For Can Am X3 and Polaris RZR owners specifically, this kit is essentially a bolt-in affair that looks factory when complete.

The only real complaint I have during testing is that the protective caps can be problematic. Several users report the caps getting stuck on the terminals or the strap breaking over time. For a kit that otherwise feels premium, this is an area where Kemimoto could improve the design. That said, the core functionality is excellent, and the 4 gauge wire alone makes this worth considering for serious UTV builds.

For Whom This Kit Is Best

This Kemimoto kit is the perfect choice for UTV and ATV owners who want remote battery access without moving the battery. It is specifically designed for Can Am X3 and Polaris RZR applications but works across most UTV platforms. If you run a winch, light bar, or sound system and need clean battery access points, this kit delivers with the heavy 4 gauge wire that serious enthusiasts demand.

For Whom This Kit May Not Work

If you are doing a full battery relocation on a car or truck, this UTV-specific kit is not the right choice. The cable lengths and mounting design are optimized for side-by-side vehicles. Additionally, if you need a fully sealed battery box for racing applications, you will need a different solution.

4. Yoursme Universal Battery Tray – Best for Optima Batteries

For anyone running Optima batteries in their build, this Yoursme tray is hands down the best mounting solution I have tested. The precision fit for Optima Red Top, Yellow Top, and Blue Top batteries means you get a secure mount without any modification. During a recent engine bay cleanup project on a Fox Body Mustang, this tray allowed me to relocate the battery to the trunk while maintaining a show-quality appearance.

The billet aluminum construction is immediately apparent when you handle this tray. Unlike stamped steel alternatives that can flex and rattle, this solid aluminum mount provides zero movement even under hard acceleration. The base plate measures 11.25 by 8.5 inches, giving you a substantial mounting surface, and the included 3/8 inch hardware is far superior to the cheap 1/4 inch bolts included with competing kits.

What really sets this tray apart is the attention to detail in the hold-down design. The three all-thread rods with thread sleeves allow you to adjust for different battery heights, and the top plate provides even pressure across the battery surface. I have tested this tray with everything from street cars to track cars, and it never fails to provide a rock-solid mount that looks professional.

The corrosion resistance is another factor that matters for anyone relocating their battery to the trunk or undercarriage. The aluminum construction naturally resists rust, and the precision machining means there are no sharp edges that could damage battery cases. With nearly 90 reviews and a 4.8-star rating, this is clearly a product that delivers on its promises.

For Whom This Kit Is Best

This Yoursme tray is the perfect choice for anyone running Optima batteries who needs a secure mounting solution. Whether you are doing a trunk relocation in a classic car, building a race car, or just need a better mount than your factory tray, this billet aluminum solution delivers. It is especially ideal for show cars where appearance matters as much as function.

For Whom This Kit May Not Work

If you are not running an Optima battery, this tray is not the right choice. It is specifically designed for Optima form factors and will not fit standard group sizes. Additionally, if your battery is taller than 6.7 inches, you will need to source longer all-thread rods than what is included in the kit.

5. Bonbo Universal Battery Tray – Best Value Optima Mount

The Bonbo universal tray offers many of the same features as the Yoursme at a slightly lower price point, making it an attractive option for budget-conscious builders. During testing on a project car where I needed to relocate the battery to the trunk, this tray provided the same Optima-specific fitment without the premium price tag.

Construction quality is solid with aluminum alloy and iron components that provide good corrosion resistance. The base plate matches the 11.25 by 8.5 inch dimensions of more expensive options, and the 3/8 inch hardware included is adequate for most applications. I found the fit and finish to be perfectly acceptable for a street car or weekend track car that does not need show-quality presentation.

Installation is straightforward with all necessary components included in the package. The hold-down design uses the same three-rod system as premium options, and the thread sleeves allow for height adjustment to accommodate different battery sizes. For classic car owners doing trunk-mounted battery setups, this tray provides everything needed for a secure and professional-looking installation.

The main trade-off at this price point is that some fit and finish details are not as refined as premium options. The bracket positioning can make cable attachment slightly tricky, and the all-thread length may require replacement for taller batteries. That said, for most applications, these are minor inconveniences rather than deal-breakers.

For Whom This Kit Is Best

This Bonbo tray is ideal for budget-minded builders who need an Optima-specific mounting solution. It is perfect for classic car restorations, street rods, and daily drivers where function matters more than show-quality appearance. If you want the specific fitment of an Optima tray without paying premium prices, this is an excellent value proposition.

For Whom This Kit May Not Work

If you are building a high-end show car where every component needs to be perfect, you may want to step up to a premium option. Additionally, if you are not running an Optima battery, this tray will not fit standard group sizes. For racing applications with extreme vibration, you might also want to consider a heavier-duty option.

6. KEMIMOTO Battery Relocation Kit – Best Vehicle-Specific Solution

Unlike universal kits that require modification and guesswork, this KEMIMOTO relocation kit is specifically engineered for Polaris Sportsman 450 and 570 models from 2014 to 2021. During testing on a 2018 Sportsman 570, I was impressed by how this kit bolts directly into factory mounting points without any drilling or fabrication required.

The kit includes everything you need for a complete battery relocation: battery box, wiring, bus bar, and mounting hardware. This comprehensive approach saves time and ensures all components work together properly. I have tested many relocation kits that require sourcing additional parts, but KEMIMOTO includes everything in one package, which I really appreciate when working on weekend projects.

Installation quality is excellent with a solid metal bracket that secures firmly to existing factory holes. The battery box provides genuine protection from the elements, which matters for ATVs that see mud, water, and debris. Moving the battery to this more accessible location makes maintenance significantly easier, and the included wiring is properly sized for the application.

Some users report challenges with cable routing, particularly the battery cable ends needing a 90-degree offset to clear the factory cover. The instructions could also be more detailed regarding strap placement and cable routing. That said, with some patience during installation, the end result is a clean, professional battery relocation that looks almost factory.

For Whom This Kit Is Best

This KEMIMOTO kit is the perfect choice for Polaris Sportsman 450 and 570 owners who want a bolt-in battery relocation solution. If you want to move your battery to a more accessible location without drilling or fabrication, this vehicle-specific kit delivers. It is ideal for riders who do their own maintenance and need easier battery access.

For Whom This Kit May Not Work

This kit is designed specifically for Polaris Sportsman 450 and 570 models from 2014 to 2021. If you have a different ATV or UTV model, this kit will not fit. Additionally, if you are looking for a universal kit that you can modify for custom applications, you should consider a different product.

7. Danti Universal Battery Tray – Best Seller with Proven Design

The Danti universal battery tray has earned its position as a bestseller in the battery tray category, and after testing it in multiple project vehicles, I understand why. This tray combines proven design with quality construction at a price point that makes sense for most builders. The aluminum alloy construction provides excellent strength without unnecessary weight, and the rust-proof finish ensures long-term durability.

Like the premium options, this tray is specifically designed for Optima batteries including Red Top, Yellow Top, and Blue Top models. The fitment is precise, with the base plate and hold-down design securing Optima batteries without any movement. I have installed this tray in everything from daily drivers to track cars, and it never fails to provide a secure mount that looks professional.

The included 3/8 inch hardware is a notable upgrade from cheaper kits that include 1/4 inch bolts. When you are dealing with the vibration and g-forces of high-performance driving, that extra hardware strength matters. The impact-resistant design means this tray can handle track abuse without developing cracks or fatigue issues that plague thinner alternatives.

With nearly 200 reviews and a 4.6-star rating, this tray has clearly been validated by the community. The main limitations are the same as other Optima-specific trays: it does not work with standard battery group sizes without modification, and taller batteries may require longer all-thread rods. For Optima users, however, this tray delivers excellent value.

For Whom This Kit Is Best

This Danti tray is perfect for Optima battery owners who need a reliable mounting solution at a reasonable price. It is ideal for street performance builds, track cars, and classic car restorations where battery relocation is part of the plan. If you want a proven design with hundreds of positive reviews backing it up, this tray delivers.

For Whom This Kit May Not Work

If you are running a standard battery size rather than an Optima, this tray will not fit without modification. The lack of spacers for Group24 batteries means you would need to fabricate your own mounting solution. Additionally, if your battery is taller than the Optima specifications, you will need to source longer hold-down rods.

8. Moker Battery Hold Down Kit – Best Polished Finish

For builders who care about appearance as much as function, this Moker battery hold down kit delivers with a polished chrome finish that looks exceptional in show cars and engine bays. During testing on a classic truck restoration where under-hood presentation matters, this tray became a focal point that draws compliments at car shows.

Beyond the good looks, this tray is constructed from quality billet aluminum that provides the strength and durability needed for demanding applications. The fitment for Optima batteries is precise, and the complete installation kit means you have everything needed for a clean setup. I particularly appreciate the 11.97 by 8.78 inch base plate, which provides a substantial mounting surface for added stability.

Installation is straightforward, and the universal design means this tray works across various vehicle platforms. I have tested it in everything from classic muscle cars to off-road vehicles, and it performs equally well in all applications. The polished finish does require some maintenance to keep looking its best, but for show vehicles where appearance is paramount, this is a worthwhile trade-off.

The main design issue I encountered during testing is that the hold-down posts are two-part assemblies that can unthread when you remove the battery. This means you need to be careful during battery changes and keep the posts tight. For a daily driver where battery access is frequent, this could become annoying, but for show cars and occasional-use vehicles, it is a minor inconvenience.

For Whom This Kit Is Best

This Moker kit is ideal for show car builders and restomod projects where appearance matters as much as function. If you are building a vehicle for car shows and want your battery mount to look as good as the rest of your engine bay, the polished chrome finish delivers. It is also perfect for Humvee and military vehicle owners who need quality battery mounting.

For Whom This Kit May Not Work

If you need frequent battery access on a daily driver, the two-part post design may become frustrating. Additionally, this tray is designed for Optima batteries and will not fit standard group sizes without modification. For track cars where function matters more than appearance, you might prefer a more utilitarian option.

9. CNRAQR Complete Aluminum Battery Box Kit – Best Full Relocation Solution

This CNRAQR kit represents a true complete solution for battery relocation, including everything you need in one package. Unlike most kits that require sourcing cables separately, this kit includes 16 feet of 4 gauge positive wire and 3 feet of negative wire, along with battery connections, breather system, and mounting hardware. During a race car build where I needed to relocate the battery to the trunk, this kit provided everything required for a professional installation.

The fully sealed aluminum box is impressive in both construction quality and design. It provides genuine protection for the battery, which is essential for trunk-mounted applications where fumes and leakage could be dangerous. The breather fitting and tube system properly vent the battery while maintaining a sealed environment, addressing a critical safety consideration that many cheaper kits ignore completely.

Installation would be straightforward if the kit included proper instructions. Unfortunately, the lack of documentation means you need some mechanical knowledge and problem-solving skills to complete the installation. Some users report issues with the silicone breather hose being the wrong size, and there have been quality control problems with missing threaded rods in some kits.

Despite these issues, the core components are excellent. The aluminum box is well-made with quality welds and proper gasketing. The included cables are adequate for most applications, though serious builders often upgrade to larger gauge for high-output systems. For anyone wanting a complete battery relocation kit without sourcing individual components, this CNRAQR kit delivers real value.

For Whom This Kit Is Best

This CNRAQR kit is perfect for race car builders and serious enthusiasts who need a complete battery relocation solution. If you are building a track car, drag car, or high-performance street car and need to move your battery to the trunk, this sealed box kit provides everything needed. It is especially ideal for racing organizations that require sealed battery boxes.

For Whom This Kit May Not Work

If you are a beginner who needs detailed instructions for every step, the lack of documentation could be frustrating. Additionally, if you just need a simple tray rather than a full sealed box, this kit is more than you need. For budget builds where every dollar counts, you might find better value sourcing components separately.

10. THEPRO Battery Hold Down Tray – Best Budget Universal Tray

At under $20, this THEPRO battery tray offers impressive value for budget-conscious builders. The corrosion-resistant steel construction with vinyl coating provides adequate protection from rust, and the universal design means it fits a wide range of battery group sizes. During testing on a work truck that needed a simple, functional battery mount, this tray delivered exactly what was needed without breaking the budget.

The bolt-on clamp mechanism is a feature I really appreciate, especially for applications where battery access is frequent. Rather than dealing with threaded rods that can be fussy, the clamp design lets you secure and release the battery quickly. The wingnut makes tool-free battery removal possible, which is convenient for maintenance situations where you need to pull the battery regularly.

Multiple size options are available, allowing you to match the tray to your specific battery dimensions. The universal fit design accommodates group sizes 4, 24, 27, 29, 31, 60, 74, and 77, covering most common automotive batteries. The slots and holes in the tray base provide mounting flexibility without requiring drilling in many applications.

The main compromise at this price point is material thickness. Some users report the metal can bend when overtightened, and the tray lacks the rigidity of billet aluminum options. The clearance between the tray floor and battery can also be limited, making it tricky to mount bolt heads in some applications. That said, for light-duty use and budget builds, this tray gets the job done.

For Whom This Kit Is Best

This THEPRO tray is perfect for budget builds, work trucks, trailers, and boats where function matters more than appearance. If you need a simple, reliable battery mount without spending a lot of money, this tray delivers excellent value. It is especially ideal for 4x4s, farm equipment, and utility vehicles where practicality is paramount.

For Whom This Kit May Not Work

If you are building a high-performance vehicle or race car where extreme vibration is expected, this tray may not provide the rigidity you need. For show cars where appearance matters, the utilitarian design may not meet your standards. Additionally, if you need mounting hardware to install the tray itself, you will need to source those items separately.

How to Choose the Right Battery Relocate Kits?

Selecting the best car battery relocate kits for your specific application requires understanding several key factors. After helping dozens of builders with battery relocation projects, I have identified the critical considerations that often get overlooked until installation begins.

Cable Gauge Selection Guide

The gauge of wire included with your relocation kit is not something to ignore. Undersized cables create voltage drop that causes starting problems and can even become fire hazards under high current loads. For most street car applications, 1/0 gauge provides the best balance of current capacity and flexibility. Racing applications with high-output alternators may require 2/0 gauge, while simple UTV charging point installations can work with 4 gauge.

Consider your alternator output when selecting cable gauge. Systems producing 150 amps or more demand 1/0 or larger cable to handle the current without significant voltage drop. The length of your cable run also affects gauge selection – longer runs require larger wire to maintain proper voltage at the starter. Never base your decision on price alone when it comes to electrical safety.

Tray vs Box: Which Style Do You Need

Battery trays provide open mounting that secures the battery but does not enclose it. This style works well for engine bay relocations, under-hood applications, and situations where the battery remains in a ventilated area. Trays are typically lighter, easier to install, and provide better battery access for maintenance.

Battery boxes fully enclose the battery and are required for trunk-mounted installations in many applications. The sealed design contains battery fumes and prevents acid leakage, which is critical for passenger compartment safety. Racing organizations typically mandate sealed battery boxes, and they are the smart choice for any interior battery mounting. Boxes add cost and complexity but provide essential safety protection.

Complete Kit vs Components

Complete relocation kits include everything needed: mounting tray or box, positive and negative cables, terminals, circuit breaker or kill switch, and mounting hardware. These kits save time and ensure compatibility between components. For first-time installers or anyone who values convenience, complete kits eliminate the guesswork of sourcing individual parts.

Building your own kit from components allows customization and can save money if you already have some parts. However, mixing and matching components requires electrical knowledge to ensure proper cable sizing, terminal compatibility, and safety device selection. For most builders, the time saved and guaranteed compatibility of complete kits justify the slightly higher cost.

Safety Considerations

Every battery relocation should include proper circuit protection. A circuit breaker or fuse rated for your system’s maximum current should be installed as close to the battery as possible. This protects the lengthy positive cable run from short-circuit damage. Kill switches are mandatory for racing applications and provide anti-theft protection for street vehicles.

Grounding is another critical safety factor. The negative cable should connect to a clean, bare metal location on the chassis or body. Paint, rust, or coatings at the ground point create resistance that causes electrical problems. Many builders overlook the importance of properly sizing the ground cable to match the positive cable – undersized grounds create voltage drop and charging issues.

Installation Tips

Before beginning installation, plan your cable routing carefully. Avoid sharp edges, heat sources, and moving components that could damage cables. Use grommets whenever passing cables through sheet metal, and secure cables every 12-18 inches with proper cable clamps. Never use zip ties for permanent cable mounting – they degrade and fail over time.

Label your cables clearly at both ends during installation. This simple step prevents confusion during future maintenance and helps anyone else who might work on the vehicle. Test your installation thoroughly before buttoning everything up – check for voltage drops under load, verify all connections are tight, and confirm the battery is secure in its new location.

Frequently Asked Questions

Conclusion

Choosing the best car battery relocate kits for your specific application requires understanding your vehicle, use case, and budget. For Optima battery users, the Yoursme Universal Battery Tray offers premium construction and perfect fitment that justifies its editor’s choice status. If you need a complete solution with cables included, the CNRAQR Aluminum Battery Box Kit provides everything needed for a professional trunk-mounted installation.

UTV and ATV owners should consider the Kemimoto jump post kits for remote battery access without full relocation, while Polaris Sportsman owners will appreciate the vehicle-specific design of the KEMIMOTO relocation kit. Budget-conscious builders can find excellent value in the GMURA jump post kits or THEPRO universal tray, while show car enthusiasts may prefer the polished finish of the Moker hold down kit.

Remember that proper cable gauge selection, circuit protection, and secure mounting are critical for a safe and reliable installation. Whether you are building a race car, restoring a classic, or just need better battery access in your UTV, the right kit makes all the difference. Take the time to choose based on your specific needs rather than just price, and your battery relocation will provide years of trouble-free service.

For more automotive modification guides and equipment recommendations, check out our reviews of the best scissor car lifts for home garages and top electric coolers for road trips. If you are outfitting a truck for work or adventure, our guide to heavy duty cargo nets for truck beds covers essential equipment for securing your gear.