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Redarc Smart Start SBI12D dual sensing battery isolator, the red Redarc housing mounted on a solenoid with two heavy studs on top, a zinc-plated mounting bracket underneath, and the earth lead and blue sense wire already fittedRedarc Smart Start SBI 24V 100A | IsolatorsRedarc Smart Start SBI 24V 100A | IsolatorsRedarc Smart Start SBI 24V 100A | Isolators

Redarc

Smart Start SBI 24V 100A | Isolators

SBI24

The REDARC Smart Start SBI24 24V 100A Battery Isolator is a microprocessor-controlled dual battery isolator designed to manage the charging of auxiliary batteries in 24V systems. It ensures that the start battery is protected from excessive discharge by isolating it…

$235.00

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Important note

Designed, built, and tested in Australia for use in tough off-road, marine, and commercial applications.

We accept
Suitable for 24V dual battery systems in 4WDs, trucks, RVs, buses, and marine applications.

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The REDARC Smart Start SBI24 24V 100A Battery Isolator is a microprocessor-controlled dual battery isolator designed to manage the charging of auxiliary batteries in 24V systems. It ensures that the start battery is protected from excessive discharge by isolating it from the auxiliary battery when the engine is off, while allowing the auxiliary battery to power non-essential loads.

Once the start battery reaches a predetermined voltage, the SBI24 automatically connects both batteries, allowing the auxiliary battery to be charged. This system is ideal for vehicles with dual battery setups, such as commercial trucks, RVs, and marine applications.

  • Microprocessor-controlled smart isolator
  • Protects start battery from drain
  • Automatic connect/disconnect based on voltage
  • Suits harsh environments: water, vibration, and dust resistant
  • Works with standard REDARC wiring kits

Nominal Voltage: 24V DC

Current Rating: 100A continuous

Cut-in Voltage: 26.4V

Cut-out Voltage: 24.8V

Turn On Delay: 5 seconds

Turn Off Delay: 10 seconds

Warranty: 2 Years

Operating Temperature: -20°C to +70°C





Length: 75mm

Width: 70mm

Height: 80mm

Weight: 0.2kg

Source: manufacturer-verified

Everything this install needs

0 of 0 in the box

Mounts easily under the bonnet or cabin using standard REDARC wiring kits. Professional installation recommended.

SBI24 Instruction Manual EN

SBI24 Install Guide EN DE ES FR IT PL AR

SBI Brochure

Suitable for 24V dual battery systems in 4WDs, trucks, RVs, buses, and marine applications.

Q: Will this isolate my start battery when the vehicle is off?
Yes, it prevents the start battery from draining by disconnecting it once the engine is off.

Q: Can it handle harsh environments?
Absolutely—it’s fully sealed and built tough for off-road and marine use.

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