Battery Relocation Kit
Representative Photo, actual item may vary
Holley 120107DS Detroit Speed Battery Relocation Kit with 2-Gauge Cables and Stainless Hardware
What Is a Battery Relocation Kit?
A battery relocation kit is a collection of hardware, wiring, and mounting components designed to move your vehicle's battery from its factory location — typically the engine bay — to an alternate position, most commonly the trunk or rear cargo area. This seemingly simple modification can have a meaningful impact on how your vehicle handles, performs, and looks under the hood.
Why Relocate Your Battery?
The battery is one of the heavier single components in any vehicle's electrical system, often weighing between 30 and 50 pounds. Where that weight sits has a real effect on your car's front-to-rear weight balance. For performance builds, drag cars, and track-day vehicles, shifting that mass rearward can improve traction at launch, sharpen steering response, and bring the car closer to a 50/50 weight distribution — a goal that chassis engineers chase relentlessly.
Beyond performance, relocating the battery also frees up valuable real estate in the engine bay. Builders crafting a clean engine bay for shows, or those running large supercharger or intercooler setups, often find the stock battery location simply gets in the way. Moving it to the trunk solves the clearance problem while keeping the electrical system fully functional.
Battery relocation kits also play a role in safety and compliance. Many sanctioning bodies for motorsports, including drag racing and road racing organizations, require a trunk-mounted battery to meet roll cage and electrical regulations. A properly designed relocation kit ensures all wiring runs are adequate in gauge and length to handle the current demands of the vehicle without voltage drop or heat buildup.
What to Look for in a Battery Relocation Kit
- Cable gauge and length: Longer runs require heavier gauge wire to prevent voltage drop. Quality kits include pre-terminated cables rated for the full current load of your vehicle.
- Mounting tray and hardware: A sturdy, purpose-built battery tray keeps the battery secure under hard acceleration and braking. Look for welded steel or billet aluminum construction.
- Grounding provisions: Proper chassis and engine grounds are critical when the battery is far from the engine. Better kits include dedicated ground cables sized to match the positive run.
- Fusible link or circuit breaker: A high-amperage fuse or breaker near the battery protects the long cable run from shorts — an important safety feature for any relocation.
- Vehicle-specific vs. universal fit: Some kits are engineered for specific platforms, offering OEM-quality fitment, while universal kits offer flexibility across multiple builds.
Top Brands in Battery Relocation Kits
BMR Suspension is well known in the muscle car and performance community for precision-engineered chassis and suspension components, and their battery relocation solutions carry that same commitment to fitment and durability — making them a top choice for late-model GM and Ford platform builds.
Taylor brings decades of high-performance wiring expertise to the category, offering battery relocation cables and components built to handle the demands of high-output engines and extended wiring runs without compromise.
Hooker BlackHeart rounds out the lineup with a performance-first approach, providing relocation kits designed to complement their exhaust and muscle car build systems — ideal for builders putting together a complete performance package.