Victron DC-DC Charger

Premium Victron DC-DC Chargers for Caravans, 4WDs & Marine

Keeping your auxiliary batteries fully charged while on the move is critical for any serious touring setup. A high-quality Victron DC to DC charger ensures your house battery receives the precise voltage and current required, safely drawing power from your vehicle’s alternator. Whether you are outfitting a 4WD canopy, upgrading a caravan, wiring a marine vessel, or managing a heavy-duty commercial truck, these chargers deliver reliable, intelligent power management designed for demanding off-grid environments.

We supply a comprehensive selection of Victron DC-DC chargers to suit a wide variety of mobile applications. Alongside individual units, you will also find carefully curated pre-configured packages like the Exotronic 4WD Independence and Starter kits, providing versatile, ready-to-install options for every level of build.

Choosing the Right Victron DCDC Charger

Victron Energy offers industry-leading algorithms to protect your batteries and optimise charging cycles, ensuring longevity for expensive lithium or AGM banks. With built-in Bluetooth on smart models, you can monitor performance in real-time, adjust voltage settings, and configure your system directly from your smartphone via the VictronConnect app.

• Victron Orion-Tr Smart: The proven standard for mobile power. Available in 12V DC-DC chargers, 24V DC-DC chargers, and 48V DC-DC chargers variants, these units feature a robust passive cooling design and fully adjustable output to suit various smart alternator and battery types.
• Victron Orion XS: Representing the next generation of Victron DC to DC chargers. The Orion XS models boast up to 98% efficiency, dramatically reducing heat generation compared to older models. With fully programmable output currents, such as the popular 50A and high-capacity 70A models, they are ultra-efficient and perfect for compact, high-demand installations where space and thermal management are paramount.

Isolated vs Non-Isolated Models

Selecting the correct grounding configuration is a critical step in system design, vital for safety and reliable performance.

• Non-Isolated DC-DC Chargers: Ideal for vehicles where the starter battery and the house battery share a common negative ground. This is typical in most standard 4WD, truck, and camper trailer setups.
• Isolated DC-DC Chargers: Required when the starter and auxiliary batteries do not share a common ground, or to prevent ground loops and protect sensitive electronics. This configuration is highly recommended in marine applications, complex caravan builds, or vehicles with fibreglass bodies.

Installation or Setup Considerations

When installing a Victron DC-DC charger, appropriate cable sizing is critical to minimise voltage drop over long runs, especially from the engine bay to a caravan or rear canopy. Always refer to the manufacturer’s continuous rating specifications and use appropriate circuit protection at both the starter and auxiliary battery ends. Many users search for a Victron DC to DC charger with solar input; however, Victron deliberately separates these functions. You will need to pair your unit with a dedicated Victron SmartSolar MPPT controller. This modular approach ensures maximum efficiency for both alternator and solar charging circuits without compromising either. Don't forget to review our DC-DC charger accessories for remote cables and networking components to complete your installation.

As an Australian family business with over a decade of experience in mobile electrical systems, we are dedicated to providing high-quality products and expert technical advice. We pride ourselves on exceptional before and after support to help you get your power setup right the first time. Enjoy fast dispatch on your new Victron smart charger and ensure your off-grid electrical system always has the power you need to keep exploring.