SKU: 8324339419

Dual Sensing Smart Start Battery Isolator 12V 100A - REDARC

Sale price$175.50 Regular price$195.00
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Description

Dual Sensing Smart Start Battery Isolator 12V 100A - REDARCThe 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. The REDARC Smart Start SBI12D is a microprocessor controlled dual battery isolator used in a dual battery system. Its manufactured for use as a solenoid priority system to protect the start battery from excessive discharge while

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.

The REDARC Smart Start® SBI12D is a microprocessor-controlled dual battery isolator used in a dual battery system. It’s manufactured for use as a solenoid priority system to protect the start battery from excessive discharge while allowing the auxiliary battery to supply non-essential loads.

Dual sensing

The SBI12D provides 12 volt DC incorporating 100A of continuous ratings and is designed for heavy-duty operations. The dual sensing model is compact and easy to install. It isolates the start and auxiliary battery in a system where the auxiliary battery may be charged by an external source. The SBI12D also allows the start battery to be charged by the external source after the auxiliary battery reaches 13.2V.

Power saving technology

The power saving technology includes fault detection and LED indication of operation to warn users of voltage drops, over-voltage, or excessive current draw conditions. The SBI12D has components that prevent the solenoid from generating high voltage transients. It’s better than a diode battery isolator based on the the voltage drop associated with a diode type isolation.

Surge protection

The SBI12D has full surge protection and is used primarily in 4WD and commercial vehicles. Choose the SBI12D for a safe way to charge an auxiliary battery. The SBI range manages battery charge for your secondary battery banks while on the move.

Features:

  • Overmold design
  • Compact size and easy installation
  • Silver contacts for longer life and suitable for marine applications
  • Power saving technology
  • Fault indication
  • Fully surge protected

Product Brochure
Instruction Manual

Specs:

Output Voltage

12VDC

Output Current Rating (Cont.)

100A

Input Current (Max.)

100A

Input Fuse Rating

100A

Output Fuse Rating

100A

Length (in)

3.15

Width (in)

2.95

Height (in)

2.48

Warranty

2 Years

Weight (lb)

.44

California residents: see Proposition 65 information

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    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
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    SKU: 8324339419

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    4.0 ★★★★★
    Based on 25 reviews
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    Verified Purchase
    Hugh62
    Belleville, US
    ★★★★★ 1
    Poor quality control - maybe outlet store leftovers
    Size: 11.5, Color: Burgundy Polished Full Grain
    The two shoes were not the same size. They were both labeled 11 1/2 but one shoe was larger than the other and the fit was poor. I returned the first pair and ordered a replacement. This time the shoes were close to the same size but too loose and the left one has sewing issues. I've bought Johnston & Murphy for years because of the quality. These were to replace an existing pair of burgundy penny loafers that have finally worn out (even after several heal/sole replacements). That is the expected quality. I suspect Nashville Shoe Warehouse may be handling shoes that didn't measure up for the quality; more like an outlet mall than getting the J&M quality I've come to expect. Update: went to Johnston & Murphy site to buy "direct" from the manufacturer. There were several recent reviews where the shoes were long and didn't fit properly. Genesco - please step up the manufacture / crafting of these classic shoes to the level of quality they used to have.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on July 21, 2025
    F
    Verified Purchase
    Fabric Crazy
    Omaha, US
    ★★★★★ 5
    Really nice shoes
    Size: 9, Color: Black Polished Full Grain
    My husband enjoys wearing these shoes. Very classy looking. They fit well. They arrived quickly. He liked them so much he ordered another pair in a different color which have worked out just as well.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 3, 2026
    T
    Verified Purchase
    tjw
    Dallas, US
    ★★★★★ 3
    Way too narrow
    Size: 9.5 Wide, Color: Burgundy Polished Full Grain
    I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 12, 2026
    B
    Verified Purchase
    BetterEveryDay
    Los Angeles, US
    ★★★★★ 5
    I usually wear 11.5's, but I buy 1/2 size smaller to accommodate for stretch. Leather relaxes.
    Size: 11, Color: Burgundy Polished Full Grain
    5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 18, 2025
    D
    Verified Purchase
    Doc
    Charlottesville, US
    ★★★★★ 5
    Great price great shoe
    Size: 12, Color: Burgundy Polished Full Grain
    Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 23, 2026

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