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REDARC Smart Start SBI 12V 100A

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Original price $190.25
Original price $190.25 - Original price $190.25
Original price $190.25
Current price $180.00
$180.00 - $180.00
Current price $180.00

The REDARC Smart Start® SBI2 is a microprocessor-controlled battery isolator used in dual battery systems as a solenoid priority system. It will protect the start battery from excessive discharge, whilst allowing the auxiliary battery to supply non-essential loads. The SBI2 provides 12 volt DC incorporating 100A of continuous ratings.

Power Saving Technology

The battery isolator is primarily used in 4WD and commercial vehicles and incorporates electronic components that will prevent the solenoid from generating high voltage transients. It is better than a diode battery isolator due to the voltage drop associated with diode type isolation. It features a low standby current draw and sophisticated fault detection and LED indication of operation to warn the user of faults including over-voltage, voltage drop and excessive current draw conditions.

The Smart Start SBI12 battery isolator is a safe way to charge a dual battery system and should often be installed with a high quality fuse kit.


  • Overmould design
  • Compact in size and easy to install
  • Silver contacts for longer life and suitable for marine applications
  • Power saving technology
  • Fault indication
  • Fully surge protected



    Input (Operating) Voltage 12VDC
    Output Current Rating (Cont.) 100A
    Input Fuse Rating 100A
    Output Fuse Rating 100A
    Warranty 2 Years
    Length (mm) 80
    Width (mm) 75
    Height (mm) 63
    Weight (kg) 0.2
    Type Approval CE

    Customer Reviews

    Based on 7 reviews
    Warren Kay

    Good price and fast delivery.

    Graeme Starr

    Fast delivery haven't been installed yet

    Robert Pettett
    Redarc vsr unit

    Quick postage, good item, great communication.👍👍

    Jane Ryrie
    Well engineered

    Can't go wrong with redarc products

    Coleen Blackwell
    Great product

    Was what my auto electrician wanted at a great price
    Fast delivery