6m DC-DC Charger Wiring Harness with MIDI Fuse – Dual Battery Loom

Razorback DC 6m DC-DC Charger Wiring Harness with MIDI Fuse – Dual Battery Wiring Loom

Make your dual-battery installation cleaner and easier with the Razorback DC 6m DC-DC Charger Wiring Harness with MIDI Fuse, designed for 4WD, caravan, camper trailer, canopy and auxiliary battery systems.

With a generous 6 metre cable length, this heavy-duty wiring loom provides the reach required for many vehicle installations where the starting battery and DC-DC charger are positioned some distance apart.

Importantly, the harness also incorporates MIDI fuse protection, helping provide essential circuit protection for the main DC power supply.

Whether you're installing a new dual-battery system or upgrading an existing setup, the Razorback DC wiring harness provides a convenient solution for connecting a compatible DC-DC battery charger.

⭐ Key Benefits

• 6m DC-DC charger wiring harness
• Designed for dual-battery installations
• Heavy-duty automotive power cable
• MIDI fuse holder included
• MIDI fuse included
• Provides essential main-circuit fuse protection
• Generous 6 metre length
• Ideal for long vehicle cable runs
• Suitable for compatible DC-DC chargers
• Excellent for 4WD and canopy installations
• Ideal for caravans and camper trailers
• Suitable for lithium and AGM auxiliary battery systems
• Helps simplify DC-DC charger installation
• Professional alternative to sourcing individual wiring components

⚡ Designed for DC-DC Battery Charger Installations

A reliable DC-DC charger requires correctly installed power cabling between the vehicle electrical system, charger and auxiliary battery setup.

The Razorback DC 6m Wiring Harness is designed specifically for this type of installation.

As a result, it is ideal for:

• 4WD dual-battery systems
• Ute canopy electrical systems
• Caravan battery charging
• Camper trailer installations
• Touring vehicles
• Work vehicles
• Auxiliary battery systems
• Custom 12V electrical installations

📏 Generous 6 Metre Cable Length

Vehicle layouts vary considerably, especially when auxiliary batteries and charging equipment are installed toward the rear of a vehicle.

For this reason, the Razorback DC harness provides a generous 6 metre cable length.

That additional reach makes it suitable for installations where the charger may be mounted in:

• Rear 4WD canopies
• Ute trays
• Drawer systems
• Caravan electrical compartments
• Camper trailers
• Rear cargo areas
• Custom electrical enclosures

Furthermore, having sufficient cable length makes routing around vehicle panels and other obstacles significantly easier.

🛡️ MIDI Fuse Protection Included

High-current DC circuits should be appropriately fused to protect the cable and electrical system.

Therefore, this harness includes a MIDI fuse holder and MIDI fuse as part of the wiring package.

MIDI fuses are commonly used in automotive and auxiliary battery systems because they provide compact high-current circuit protection.

The fuse installation can help protect against excessive current caused by faults or short circuits when the system is correctly designed and installed.

🔥 Why Main Cable Fuse Protection Matters

The cable supplying a DC-DC charger is connected to a substantial energy source: the vehicle's starting battery.

Consequently, adequate fuse protection is an important part of a properly designed installation.

Without appropriate protection, a damaged positive cable could create excessive current and heat.

For best protection, the main supply fuse should be installed in the appropriate location close to the battery power source while following the charger and vehicle manufacturer's installation requirements.

🚙 Perfect for 4WD Dual Battery Systems

Modern 4WD electrical systems often use DC-DC chargers to manage charging between the vehicle starting battery and auxiliary battery.

This wiring harness is ideal for setups containing:

• LiFePO4 lithium auxiliary batteries
• AGM auxiliary batteries
• DC-DC chargers
• Solar-equipped DC-DC chargers
• Fridges and freezers
• Canopy electrical systems
• Inverters
• Lighting
• Camping accessories

Additionally, its 6m length is particularly useful when the auxiliary electrical system is positioned in the rear of the vehicle.

🛻 Ideal for Ute Canopy Installations

Ute canopy systems frequently require a substantial cable run from the vehicle's engine bay to equipment mounted behind the cab.

For example, the harness can form part of an installation containing:

• DC-DC battery charger
• Auxiliary battery
• Fuse box
• Bus bars
• Anderson outlets
• Inverter
• Fridge
• Lighting
• Solar controller
• Accessory power distribution

Therefore, it is a practical starting point for building a professional touring or work-vehicle electrical system.

🏕️ Caravan & Camper Trailer Applications

The Razorback 6m DC-DC Wiring Harness is also suitable for compatible caravan and camper installations.

DC-DC charging can help maintain an auxiliary battery while travelling, particularly when used with modern vehicles and correctly configured battery systems.

Suitable applications include:

• Caravan battery charging
• Camper trailer battery systems
• Touring setups
• Portable auxiliary systems
• Custom recreational vehicle electrical installations

🔋 Lithium & AGM Battery Systems

The wiring harness itself can form part of electrical systems using different auxiliary battery chemistries.

These may include:

• LiFePO4 lithium batteries
• AGM batteries
• Gel batteries
• Other compatible auxiliary batteries

However, the connected DC-DC charger must have the correct charging profile for the battery chemistry being used.

For example, a LiFePO4 battery should be paired with a charger specifically designed or configured for lithium charging.

☀️ Great for DC-DC Chargers with Solar Input

Many modern DC-DC chargers combine alternator charging and solar charging within one unit.

Accordingly, this harness can form part of a complete touring electrical system incorporating:

• Vehicle alternator charging
• DC-DC battery charging
• Solar input
• MPPT solar regulation
• Lithium or AGM battery storage

For customers building a complete system, it pairs perfectly with a compatible Razorback DC-DC Battery Charger.

🔌 Heavy-Duty Automotive Wiring

High-current battery charging requires properly sized automotive cabling.

Using suitable cable helps minimise:

• Voltage drop
• Charging losses
• Excessive cable heating
• Poor charger performance

In addition, correctly installed heavy-duty cabling allows the DC-DC charger to receive a stable supply from the vehicle electrical system.

🧰 Simplifies Dual Battery Installation

Building a DC-DC wiring system from individual components can require purchasing cable, fuse protection and other electrical hardware separately.

By comparison, the Razorback 6m harness combines the essential main wiring and MIDI fuse protection into one convenient package.

As a result, it can make planning and installing a dual-battery charging system considerably easier.

🔧 Installation

For the best performance, always follow the installation instructions supplied with your DC-DC charger.

During installation:

1. Plan the cable route before installation.
2. Keep wiring away from exhaust systems and excessive heat.
3. Protect cable from sharp edges and abrasion.
4. Secure the wiring along the vehicle.
5. Install fuse protection in the appropriate location.
6. Ensure all electrical connections are secure.
7. Confirm correct polarity before connecting equipment.
8. Follow the DC-DC charger manufacturer's wiring requirements.

Most importantly, always ensure the cable size, fuse rating and charger capacity are correctly matched.

🛡️ Protect Wiring from Vehicle Damage

Vehicle wiring can be exposed to:

• Heat
• Vibration
• Sharp metal edges
• Road debris
• Water
• Dust
• Mechanical movement

Therefore, wiring should be routed carefully and protected using suitable conduit, sleeving, grommets and mounting hardware where required.

Correct installation can significantly improve the reliability and service life of the complete electrical system.

🔍 Product Features

• Razorback DC DC-DC charger wiring harness
• 6 metre cable length
• Heavy-duty automotive wiring
• MIDI fuse holder included
• MIDI fuse included
• Designed for dual-battery charger installations
• Suitable for compatible DC-DC chargers
• Suitable for lithium auxiliary systems
• Suitable for AGM auxiliary systems
• Ideal for 4WD installations
• Excellent for ute canopy wiring
• Suitable for caravan and camper systems
• Great for touring electrical setups
• Helps simplify professional dual-battery installation

Off-Grid & Auxiliary Battery Charging

📦 What's Included

• 1 × Razorback DC 6m DC-DC Charger Wiring Harness
• 1 × MIDI Fuse Holder
• 1 × MIDI Fuse