A DC-to-DC battery charger is the heart of any dual battery setup. It charges your auxiliary (second) battery from your vehicle’s alternator as you drive — safely, quickly and to a proven 100% state of charge — so you can run a fridge, lights, water pump and devices well away from mains power.
Our online store carries the Redarc BCDC range, designed, built and tested in Australia for Australian conditions. In-cabin BCDC Core models (25A and 40A) and Classic models (25A, 40A and 50A) suit most caravans and camper trailers, while compact under-bonnet 20A units are ideal for tighter installs. Many models accept DC and solar input at the same time, so your battery keeps topping up whether you’re driving or parked in the sun. The Alpha50 covers larger power demands.
Everything we list is genuine Redarc stock, selected by a team that wires 12V systems for a living. Shop with confidence knowing the range has been curated by people who understand battery types, cable runs and real-world power use. We also stock the cabling, isolators and accessories that complete a dual battery install, and every order is dispatched promptly so your build isn’t held up.
Browse the charging range below and order online for fast dispatch, or call to plan your dual battery setup. Backed by a 4.9-star Google rating from 240+ reviews, FiveStar Towbars keeps your adventures powered — wherever you are.
