DC-to-DC battery chargers and isolators

Reliable Charging for Dual Battery Systems

Keep your auxiliary battery fully charged with our range of DC-DC battery chargers and isolators. Designed for 12V and 24V systems, these products provide dependable battery management for caravans, camper trailers, 4WDs, motorhomes, boats and commercial vehicles, ensuring your auxiliary battery is ready to power essential equipment wherever you travel.

Built for Modern Vehicles

Unlike basic battery isolators, DC-DC chargers deliver a controlled multi-stage charge that helps maximise battery performance and service life. They are ideal for modern vehicles fitted with smart alternators and are compatible with AGM, flooded lead-acid, gel, calcium and LiFePO4 lithium batteries, ensuring your auxiliary battery receives the correct charging profile.

Complete Battery Management

Pairing a DC-DC charger with a battery isolator helps create a reliable dual battery system by protecting your starter battery while efficiently charging your auxiliary battery. Ideal for powering fridges, lighting, inverters, water pumps and other 12V accessories, these systems provide dependable power without compromising your vehicle's ability to start.

Find the Right DC-DC Charger

Browse our range of DC-DC battery chargers and isolators from trusted brands, backed by expert Australian support and fast, free Australia-wide shipping from 1224.