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REDARC SBI12 Smart Battery Isolator 12V 100A Dual Battery System

Manufacturer

REDARC

<p>REDARC Electronics is an Australian electronics manufacturer established in 1979, building a reputation for producing vehicle electrical systems that thrive in some of the world's most demanding environments. Designed, developed, tested and manufactured in Lonsdale, South Australia, REDARC has grown from humble beginnings in a small shed to become a global leader in automotive power management and towing solutions, employing approximately 400 skilled staff globally and exporting to more than 35 countries.</p> <h3>Engineering Excellence Built for Extreme Conditions</h3> <p>What sets REDARC apart is their commitment to rigorous testing and innovation. Their state-of-the-art manufacturing facility is equipped with advanced testing environments that simulate dust, vibration, heat and electrical conditions far exceeding standard operating parameters. This includes an Electromagnetic Compatibility Chamber and Vibration Test Lab for accelerated product lifetime testing, simulating 10 years in just two days. Whether you're traversing the Australian Outback, navigating mountain terrain, or towing through desert conditions, REDARC products are engineered to deliver consistent performance when it matters most.</p> <h3>Power Management and Charging Solutions</h3> <p>REDARC's expertise in <a href="/13879-redarc-battery-charger-14307">battery chargers</a> has made them a trusted name among adventurers and professional users alike. Their charging systems are designed to efficiently manage dual-battery setups, solar inputs, and alternator charging, ensuring reliable power for accessories, refrigeration, and electronics during extended off-grid trips. REDARC chargers incorporate intelligent charging algorithms that optimize battery health and longevity, making them essential for serious overlanding, RV travel, and commercial fleet applications.</p> <h3>Industry-Leading Brake Control Technology</h3> <p>Towing safety is paramount, and REDARC's <a href="/13879-redarc-trailer-brake-control-module-50173">trailer brake control modules</a> have earned multiple industry accolades. The company was named 2017 Global Media Award Winner for the Tow-Pro Elite Electronic Brake Controller at the SEMA Show in Las Vegas. Their brake controllers use sophisticated algorithms to provide proportional braking that responds to vehicle deceleration, terrain, and load conditions. Installation is simplified with REDARC's <a href="/13879-redarc-electric-brake-control-wiring-harness-15424">electric brake control wiring harnesses</a> and <a href="/13879-redarc-trailer-brake-control-harness-15581">trailer brake control harnesses</a>, which are engineered for vehicle-specific fitment and reliable connections.</p> <h3>Solar and Alternative Power Systems</h3> <p>For those seeking sustainable power solutions, REDARC offers <a href="/13879-redarc-solar-panel-voltage-regulator-54317">solar panel voltage regulators</a> that integrate seamlessly with their battery management systems. These regulators maximize solar charging efficiency while protecting batteries from overcharging, making them ideal for extended camping trips, remote work applications, and reducing reliance on engine-based charging.</p> <h3>Australian Heritage, Global Performance</h3> <p>REDARC holds the patents for the technologies on which these products are developed, demonstrating their position at the forefront of automotive electronics innovation. Their commitment to quality and innovation is proudly underpinned by Australian Made heritage, representing not just a geographic origin but a standard of craftsmanship and durability. REDARC Electronics has won many Australian Business awards over the years, including the 2017 Manufacturer of the Year award and the 2018 Exporter of the Year award. Every REDARC product reflects decades of engineering expertise, extensive field testing, and a customer-first philosophy that ensures buyers receive both premium technology and exceptional support.</p>

Part Number

SBI12
07/12/2036 11:08 PM
Sale Price

$165.00

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The REDARC SBI12 Smart Battery Isolator is a voltage-sensitive relay (VSR) designed to manage dual battery systems in 12-volt automotive, marine, RV, and off-road applications. This 100-amp isolator automatically connects and disconnects auxiliary batteries based on voltage levels, ensuring your starting battery remains charged while powering accessories from a secondary battery.

Key Features:

  • 100-amp continuous current rating for high-demand applications
  • Voltage-sensitive operation automatically connects at 13.3V and disconnects at 12.8V
  • Bi-directional charging allows both batteries to charge from alternator or external sources
  • Compact, weatherproof design suitable for engine bay installation
  • No voltage drop between batteries when connected for maximum charging efficiency
  • Built-in surge protection and thermal overload protection
  • Simple two-wire installation with no manual switching required
  • Compatible with standard lead-acid, AGM, gel, and calcium batteries

Ideal for vehicles with auxiliary lighting, winches, refrigerators, inverters, or other accessories that require a dedicated battery system. The smart isolator protects your main battery from discharge while ensuring reliable starting power. Australian engineered and manufactured by REDARC for extreme operating conditions.

Products specifications

Prop 65 Yes/No

Yes

Checking out via Amazon did not work.

Thanx

Good

It was very quick and easy to find the part I was looking for.

Fast and easy

easy to navigate website, quick checkout AND terrific prices

Compared to other auto parts sites (Summit, JEGS, etc.) not only was shipping to Hawaii half the cost, but the product itself was cheaper too!

Placed order on 4/23. Autoplicity sent an email on 4/25 saying product was shipped (it wasn't), tracking # was blank. Actual shipping label was created on 4/29 and finally received on 5/5. That's 13 days for delivery. Unacceptable. Product pricing was the best I could find. I'll buy from them again, but I can't be in a hurry.

Was never sent tracking info. But fast shipping. Said product will fit my truck. Does not fit 2012 f150 cup holders.

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