Tires & Parts

The Best Automotive Replacement Battery Relocation Kits

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Our picks are based on Amazon bestseller rankings, verified customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Relocating your automotive battery can offer significant benefits, from improved weight distribution for better handling to freeing up valuable engine bay space. Choosing the right kit is crucial for a safe, reliable, and effective installation. This guide will help you navigate the key factors to consider when selecting a battery relocation kit.

No. 1
CNRAQR Complete Aluminum Battery Box Relocation Kit Universal Billet Race Off Road Kit(Cable not included)
  • Strong Compatibility:Compatible with 1964-2009 V6 V8 GT LX GT500 Cobra Ford Mustang Steeda Roush & Saleen etc
  • Easy To Install:Battery box size: 13.5" W x 10"L x 10"H, with bolt-on design, it can be installed anywhere in the back of the car (as long as you have enough space)
  • High Practicality:This fully sealed box will handle every application from street to race vehicle and custom truck or suv applications
  • High-Quality Materials:Made of high-quality aluminum material,PVC protective film coating, with corrosion resistance and durability
  • Quality Service:When You Encounter Any Questions About The Product, You Can Contact Me As Soon As Possible, And I Will Answer It For You
No. 2
VEVOR Split Charge Relay Kit, 6mtr 12V, Automatic Dual Battery Isolator Kit with 140AMP Voltage Sense Relay...
  • Dual Battery Isolator: The smart battery isolator cuts in at 13.3 volts and cuts out at 12.8 volts to ensure your primary battery is always charged and ready to start your vehicle. It can charge two batteries simultaneously and isolate them from each...
  • Easy to Install: This split charge relay kit comes with complete accessories, allowing you to start installing directly without purchasing additional components. Besides, we have detailed instructions for you to complete the installation easily and...
  • Rugged & Durable: Split charge relay is made of a premium plastic material, which is shockproof and dustproof, ensuring maximum strength and durability for long-lasting usage. You will always be prepared and confident to take on any challenge.
  • Superb IP65 Waterproof: Voltage sensitive relay is waterproof up to IP65, which means that your isolator is secure for use even in dusty, wet, and unexpected extreme weather environments. Great for extreme vibration applications as well.
  • Fit Various Vehicles: This isolator kit 12v has a compact size of 2.66" x 2.11" x 2.66", suitable for almost anywhere. Mainly used in off-road vehicles, camper vans, RVs, caravans, 4x4s, leisure vehicles, ships, yachts, marine applications, etc.
No. 3
Taylor Cable 48000 Single Trunk Mount Battery Relocator Kit
  • Product type : AUTO PART
  • Fit type: Vehicle Specific
  • Package Weight: 3447.36 grams
  • Package Dimensions: 37.34 L x 20.32 W x 12.19 H (cm)
No. 4
CNRAQR Complete Aluminum Battery Box Relocation Kit Universal Billet Race Off Road Kit fit for all cars
  • High Practicality:This fully sealed box will handle every application from street to race vehicle and custom truck or suv applications
  • Convenient To Use:Our battery box is a true bolt in, hassle free plugand play kit for your vehicle
  • Complete Accessories:Comes complete with battery connections,performance wire positive and negative battery cable,16 Feet of 5 AWG Positive Cable,3 Feet of 5 AWG Negative Cable
  • Easy Installation:The breather fitting, breather tube, grommets andbattery hold down with wing nuts for an easy install
  • Package Inludes:A Complete Aluminum Battery Box Relocation Kit,If you have any question about our product, please contact us right away, we can handle any problems
No. 5
Battery Relocation Kit, Battery Jump Post Kit Heavy Duty Remote Battery Terminals Charging Post with Bracket...
  • 【Essential Tool】A battery jump post is an essential tool for any vehicle owner. It is designed to transfer the car's battery from the engine to a safer area of the vehicle, thus freeing up space in the engine bay. The battery charging post is an...
  • 【Safe and Durable】Each car battery kit is assembled with top-quality hardware. The mount bracket is made of high-quality iron and coated with black anti-corrosion paint. More durable and less prone to breakage than plastic stands. The interior of the...
  • 【Universal Compatibility】This terminal standard battery post extender is compatible with all UTV/ATV models. Additionally, our battery charger post kit can be adapted to fit trucks, racing cars, travel trailers, tractors, lawn mowers, golf carts and...
  • 【Easy to Install】Our battery jump post is designed compactly. Utilize the mounting bracket to install this battery jumper kit at any accessible place within the vehicle. The universal car battery charger is installed effortlessly, eliminating the need...
  • 【Package Includes】The battery jump post kit includes 1x storage box, 2x 50.2 inch 7AWG connecting cables, 1x heavy duty metal mounting bracket, 2x brass battery terminals, 2x insulated rubber protective caps, and all other necessary accessories. Thus...
No. 6
Stainless Steel Dual Battery Box, 12V Car/RV/Marine Battery Box, Black Batteries Relocation Kit for Trailer...
  • Dimensions - The battery box internal dimensions are 21.7'‘ L × 8’' W × 11‘ H, with external dimensions of 22.6’' L × 9'‘ W × 12.2“ H, providing ample storage space for your battery needs. Please measure your battery dimensions before...
  • Premium Stainless Steel Construction - Crafted from high-quality stainless steel, this dual battery box is built to last. Its sturdy design is both waterproof and sunproof, with added fireproof protection. The black anti-rust paint coating enhances its...
  • Waterproof Top Cover - This double battery box features an innovative top cover design that effectively prevents moisture ingress, safeguarding internal battery components from water damage. The recessed base design maintains clearance between the...
  • Thoughtful Details - Featuring convenient handrails for easy handling, a rubber ring to prevent conductivity, and detachable non-slip feet, this battery box is designed with user convenience and safety in mind
  • Wide Compatibility - Designed specifically for 12V batteries (dual batteries), this stainless steel battery box is suitable for trailers, boats, and outboard motors. Securely mounts with screws and features adjustable mounting hardware for flexible...
No. 7
Dual Battery Isolator Kit 12V - 140 Amp Voltage Sensitive Relay (VSR) for Dual Battery Setup
  • Advanced Dual Battery Isolator 12V Kit – Designed for superior performance, this dual battery kit ensures efficient power distribution between two batteries without voltage drops. Unlike traditional battery isolator diodes, this automatic disconnect...
  • Smart Voltage Sensitive Relay (VSR) for Optimal Charging – Featuring a 12V dual battery wiring kit, this system automatically activates at 13.3V and disengages at 12.8V, ensuring your starting battery remains fully charged. Whether you're installing a...
  • Built for Extreme Conditions & Rugged Durability – Engineered for off-road adventures, marine use, and daily driving, this dual battery isolator kit is IP65-rated for water, dust, and vibration resistance. Its solid-state design ensures durability...
  • Complete Dual Battery Wiring Kit for Easy DIY Installation – No complicated setup required! This battery isolator kit includes (1) 140 Amp voltage sensitive relay, (1) 20-ft red power cable, (1) 2-ft black ground cable, (2) positive marine-type brass...
  • Trusted Performance with Warranty & Money-Back Guarantee – Every dual battery kit by KeyLine Chargers is backed by a 12-month industry-leading warranty. If you’re not 100% satisfied with your purchase, take advantage of our 30-day money-back...
SaleNo. 8
KEMIMOTO UTV Car Battery Jump Post Starter Relocation Kit
  • Must-have Tool: Kemimoto UTV battery terminal relocation kit moves a set of to a more accessible area under the hood. The factory battery compartment is at the rear under the body plastics. Tools are required to remove the panel, it's dirty and hard to...
  • Feature: X3 battery post makes jumps and charging easy for your SxS
  • Built to Last: Each car battery kit is assembled using the top quality hardware, a copper core bushing and a large brass nut to transfer maximum power. A plastic guard is included to prevent the potential of arching against important vehicle hardware. The...
  • Wide Application: The universal car charging jump post will compatible with Can Am X3 Models 2 or 4 Seats All Models, compatible with All Polaris RZR Models 2 or 4 Seats, compatible with all UTV/ ATV models, car battery jump post start also can be adapted...
  • Easy to Install: The universal car battery charger is easy to install without requiring the drilling and you can ref. to the manual to make the installation a piece of cake
SaleNo. 9
KEMIMOTO Battery Relocation Kit Relocate Box Compatible with Polaris Sportsman 450 570 Accessories...
  • Fitment: The battery relocation kit is compatible with 2014 2015 2016 2017 2018 2019 2020 2021 Sportsman 450 570. It is not compatible with X2 because of the bed
  • More Durable: Use this battery accessory to better protect your vehicle. Extra protection and durability. Being tested before shipping
  • Easy to Install: The battery relocation kit is easy to install in minutes. Instruction is included for viewing
  • Protect Battery Provide support for your battery. More convenient to use and lasts longer
  • Notice: Please make sure whatever can be installed
No. 10
CNRAQR Aluminum Battery Box Relocation Kit Universal RV/Trailer Battery Box Outdoor With Waterproof...
  • Specially Designed for RV:This 8.1 NHRA legal Battery Relocation Kit utilizes a bolt-in design that can be perfectly installed in the battery reserve position of most RVs and Trailers.
  • Size:Maximum Capacity Size: 10.4"Lx7.87" Wx10"H,Box Peripheral dimensions (including chamfers and protruding parts such as screws):12.8"Lx8.46"Wx10.8"H,Box Thickness:1.5mm(0.059"),Suitable for 24 series battery group.
  • High-Quality Materials:Made of high-quality aluminum material,PVC protective film coating, with corrosion resistance and durability
  • High Practicality: When you want to Add battery group for your RV, but the interior space is limited, placing the batteries outside the car or on a trailer is a good choice.This kit features a durable all aluminum casing and a waterproof and dustproof...
  • Portable And Detachable:4 non-slip bases for optional installation. When you don't need to leave it in a fixed location for a long time, you can choose to fit the non-slip base so that you can leave it anywhere at any time

Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Automotive Replacement Battery Relocation Kits

Kit Components

A quality battery relocation kit should include all essential hardware for a secure installation. Look for kits that provide:
  • Durable battery trays or boxes designed to securely hold your battery in its new location.
  • Appropriate battery cables, often with pre-crimped terminals, to reach from the battery to the original terminals. Ensure the gauge of the cable is suitable for your vehicle's electrical system.
  • Mounting hardware, such as brackets, bolts, and nuts, for affixing the tray and ensuring stability.
  • Wiring accessories like battery terminals, connectors, and potentially a circuit breaker or fuse for added safety.

Material and Durability

The materials used in the kit significantly impact its longevity and the safety of your installation. Battery trays are commonly made from steel, aluminum, or high-impact plastic. Steel offers robust strength, while aluminum is lighter and corrosion-resistant. Plastic options are generally the most affordable and resistant to corrosion but may offer less structural rigidity. Ensure all components are designed to withstand engine bay temperatures and vibrations.

Frequently Asked Questions

What are the benefits of relocating a car battery?
Relocating a battery can improve vehicle weight distribution, leading to better handling and performance. It also frees up space in the engine bay, which is beneficial for engine swaps, turbocharger installations, or simply improving airflow.
How do I choose the correct cable gauge?
The appropriate cable gauge depends on the length of the cable run and the electrical demands of your vehicle. Longer runs and higher amperage requirements necessitate thicker (lower gauge number) cables to prevent voltage drop and overheating.
Is a battery box necessary?
Yes, a battery box is highly recommended, especially for safety. It contains any potential battery acid leaks and prevents short circuits by isolating the battery terminals from surrounding metal components.
Can I use a kit designed for a different vehicle?
While some universal kits may work, it's best to select a kit designed for your specific vehicle make and model if available. This ensures proper fitment of mounting brackets and appropriate cable lengths.
What tools are typically needed for installation?
Installation usually requires basic hand tools such as wrenches, socket sets, and screwdrivers. You may also need wire strippers, crimpers, and a multimeter for testing connections.