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Dual Battery Isolators

Extend your vehicle’s battery life and ensure it remains charged with a REDARC dual battery isolator. Used as a solenoid priority system in a dual battery system, a multi battery isolator from REDARC will help you adventure further and for longer. learn more

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  1. Smart Start Battery Isolator & Wiring Kit 12V SBI12KIT
    USD $254.00
    The REDARC Smart Start® SBI12D is a 100A 12v dual battery isolator used in a dual battery system. It protects the start battery from excessive discharge while allowing the auxiliary battery to supply non-essential loads.
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REDARC Battery Isolators

As a microprocessor-controlled battery isolator, the REDARC Smart Start SBI range protects your primary battery by using your alternator to charge your auxiliary battery. With state of the art power saving technology, our dual battery isolator kits are compact in size and easy to install. Not to mention, they have a sophisticated fault detection system which can warn you of over-voltage, voltage drops and excessive draw conditions.

Going overlanding? You provide the adventure, we’ll provide the power. Choose from our range of dual battery isolators to help protect the starter battery’s excessive discharge, allowing your auxiliary battery to power your accessories.

For the ultimate set up, pair a REDARC dual smart battery isolator with a battery management system. With all this power and the ability to withstand the harshest conditions, you can count on REDARC for your next adventure. Shop 12 volt battery isolators at REDARC with free shipping in the contiguous US.

Need help?

For help in choosing the best DC to DC charger or dual battery isolator setup for your needs, or find the right 12v gear to suit your vehicle.



Need a little help with choosing the right product? We're here to help! You can use our handy vehicle look-up tool, find a local installer or stockist in your area or check out our FAQs.

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