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REDARC Smart Start SBI Battery Isolator - 12V 100A

Name: REDARC Smart Start SBI Battery Isolator - 12V 100A
Brand: REDARC
SKU: rdcSBI12
Price: 181.50 USD

MPN SBI12 · Store SKU rdcSBI12

$181.50

IN STOCK2 ready to ship

Supplier stock checked 11/7/2026, 8:48:45 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

The REDARC Smart Start SBI12 is a microprocessor-controlled battery isolator which protects the start battery from excessive discharge, while allowing the auxiliary battery to supply charge to non-essential loads. It is used as a solenoid priority system in dual battery systems and provides 12V DC incorporating 100A of continuous ratings. The SBI range manages battery charge for your secondary battery while on the move. The battery isolator is mostly used in 4WD and commercial vehicles. It incorporates electronic components that prevents the solenoid from generating high voltage transients. Due to the voltage drop associated with diode type isolation, it's better than a diode battery isolator. A low standby current draw and fault detection and LED indication of operation warns users of faults such as voltage drops, over-voltage, and excessive current draw conditions. Safely maintain the charge your dual battery system with the Smart Start SBI12 battery isolator. Due to the voltage drop associated with diode type isolation, it's better than a diode battery isolator Due to the voltage drop associated with diode type isolation, it's better than a diode battery isolator Battery Isolator 12V100A

Manufacturer fitment & guides

Check SBI12 against the manufacturer’s application information below.

Part-specific notes

California Proposition 65: Y

Manufacturer documents

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What is the return policy?

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

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This policy does not limit rights required by law.

REDARC Smart Start SBI Battery Isolator - 12V 100A

Product details

Manufacturer fitment & guides

Part-specific notes

Manufacturer documents

THE NEXT PART
OF YOUR BUILD.

Free shipping on $100+ orders.

Build with the right brands.

Find your next upgrade.

Make the whole setup work.

A few things to know.

Your build.

Delivery & checkout

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