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REDARC SBI12D Dual Battery Isolator 12V 100A Smart Solenoid

Manufacturer

REDARC

<h3>About REDARC Electronics</h3><p><strong>REDARC Electronics</strong> is an Australian-born, privately held advanced electronics manufacturer with a legacy stretching back over 45 years. <a href="/13879-redarc">REDARC</a> was founded in 1979 by electronics engineer Robin (Bob) Mackie, initially operating out of a modest tin shed in Lonsdale, South Australia, with just eight employees. From those humble beginnings, the company has grown into a globally recognized leader in mobile power and towing solutions, now employing over 350 professionals across Australia, New Zealand, North America, and Europe.</p><p>What sets REDARC apart is its fully integrated design-to-manufacture approach. Every product is conceived, engineered, rigorously tested, and built at the company&apos;s advanced manufacturing facility in Lonsdale, South Australia. REDARC holds patents on the core technologies behind many of its products, and its in-house testing capabilities are among the most demanding in the industry — including Highly Accelerated Life Testing (HALT) and HASS chambers capable of simulating a decade of product life in just two days.</p><p>REDARC&apos;s product lineup spans voltage converters, inverters, power supplies, <a href="/13879-redarc-battery-charger-14307">battery chargers</a>, and <a href="/13879-redarc-trailer-brake-control-module-50173">trailer brake control modules</a> — serving industries from automotive, RV, and overlanding to marine, agriculture, mining, medical, and defense. The brand has earned widespread recognition, including being named the 2014 Telstra Business of the Year and winning the prestigious SEMA Global Media Award in 2017 for the Tow-Pro Elite Electric Brake Controller.</p><h3>Built for the Toughest Conditions</h3><p>REDARC products are built to perform where other electronics fail. Whether powering a remote copper mine, an emergency vehicle, a military platform, or a weekend overland rig, REDARC gear is engineered to thrive under extreme temperatures, vibration, and voltage variation. Their RedVision Total Vehicle Management System takes on-board power control to another level, letting RV and 4WD owners monitor and manage batteries, lighting, water pumps, and more from a single interface.</p><p>The brand&apos;s BCDC series of <a href="/13879-redarc-battery-charger-14307">in-vehicle DC-DC battery chargers</a> has become a benchmark for dual-battery setups in trucks, SUVs, and expedition vehicles, while the award-winning Tow-Pro lineup of <a href="/13879-redarc-trailer-brake-control-module-50173">electric trailer brake controllers</a> has set the standard for safe, smart towing across both on-road and off-road environments. With over-the-air firmware updates and industry-leading technical support, REDARC backs its products long after the sale.</p><h3>Why Choose REDARC?</h3><ul style="list-style:disc"><li><strong>Australian-made heritage:</strong> Designed, engineered, and manufactured in South Australia for over 45 years.</li><li><strong>Patented technology:</strong> REDARC holds patents on the core technologies behind its key product lines.</li><li><strong>Industry recognition:</strong> SEMA Global Media Award winner and multiple Telstra Business Award recipient.</li><li><strong>Extreme durability testing:</strong> In-house HALT/HASS chambers simulate 10 years of life in just two days.</li><li><strong>Wide application range:</strong> Products trusted in automotive, RV, overlanding, marine, mining, and defense sectors.</li></ul>

Part Number

SBI12D
09/12/2036 6:03 AM
Sale Price

$195.00

In Stock (5)

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Product Details

The REDARC Smart Start SBI12D is a microprocessor-controlled dual battery isolator designed to protect your start battery from excessive discharge while allowing the auxiliary battery to supply non-essential loads. This unit provides 12 volt DC with 100A continuous rating and is designed for heavy-duty operations in a compact, easy-to-install package.

Key Features:

  • Dual sensing technology isolates start and auxiliary batteries in systems where the auxiliary battery may be charged by an external source, and allows the start battery to be charged by the external source after the auxiliary battery reaches 13.2V
  • Power saving technology with fault detection and LED indication warns users of voltage drops, over-voltage, or excessive current draw conditions
  • Electronic components prevent the solenoid from generating high voltage transients
  • Overmold design with silver contacts for longer life and suitable for marine applications
  • Full surge protection ideal for 4WD and commercial vehicles
  • Automatically connects auxiliary battery to charging system when start battery reaches 13.2 volts, then isolates when system drops to 12.7 volts

This smart battery isolator is superior to diode-type isolators due to the voltage drop associated with diode type isolation. The unit includes an override function capability that allows you to link batteries together via a push button for emergency starting or winching operations. Professional installation by a qualified auto electrician is recommended, and REDARC suggests using MIDI fuses with a quality fuse holder for proper installation.

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