In-vehicle Dual Battery Chargers & Isolators

Do you want to find out how to properly charge a second car battery safely and effectively? REDARC offers the perfect dual battery system to suit any need. Whether you want to isolate your vehicle’s start battery from your auxiliary battery or use a REDARC DC to DC charger to ensure both batteries are topped up for extended expeditions - you’ll get peace of mind for any overlanding adventures with REDARC’s dual battery setups.

Maintain 100% charge

REDARC’s range of 25amp, 40amp and 50amp in-vehicle battery chargers allow you to maintain 100% charge for your secondary battery.* With solar input available in our award-winning BCDC dual input battery chargers, you’ll never have to worry that your RV house batteries are not charging while you’re driving.

*large capacity battery banks may require a few cycles to fully charge.

For the next level of multi battery charging and maintenance, consider The Manager30 battery management system. The Manager30 is a state-of-the-art battery management system that knows how to put you in charge. Incorporating AC, DC, and solar panel inputs, it’s the ultimate all-in-one solution for charging multiple battery banks in recreational vehicles, caravans and camper trailers.

Avoid flat starter batteries

Adventure further and for longer with REDARC dual battery isolators. Designed to be used in multi-battery applications as a solenoid priority system, these isolators protect the primary battery from excessive discharge, while allowing the auxiliary battery to supply non-essential loads and accessories.

Take charge with a REDARC dual battery system

You provide the adventure, we’ll provide the power. Choose from our range of in-vehicle battery charging, dual battery systems and maintenance solutions to keep your vehicle powered to perfection. Shop high quality dual battery systems, DC power supplies and more online at REDARC. Free shipping available in the contiguous US, and if you need any help with the installation, contact the REDARC customer support team.

Want to speak to a technical expert or can’t find a charger to suit your needs? Contact REDARC for more help.