$235.00
The REDARC Smart Start SBI12 12V 100A Dual Battery Isolator is a microprocessor-controlled device designed to protect your vehicle’s start battery from excessive discharge while allowing the auxiliary battery to supply charge to non-essential loads. Ideal for dual battery systems in 4WDs, caravans, and commercial vehicles, it ensures reliable power distribution. The SBI12 features a 100A continuous current rating and a 400A inrush current rating, making it suitable for heavy-duty applications. Its overmould design and silver contacts enhance durability, while the compact size allows for easy installation.
The unit incorporates power-saving technology, fault indication, and is fully surge protected, ensuring safe and efficient operation. With a low standby current draw and sophisticated fault detection, the SBI12 warns users of faults such as voltage drops, over-voltage, and excessive current draw conditions. This Australian-made isolator is built to withstand harsh conditions, making it a dependable choice for off-road adventures and commercial use.



At PowerRoo we offer a 2 year guarantee, ensuring that if any product does not operate as intended, we will resolve the issue. Contact us via email for personalised technical support with your product’s unique identifier.
We ship using Australia Post and provide secure parcel tracking where possible. Standard postage typically takes 3-5 days, and express takes 1-2 days, though this may vary based on location and Australia Post’s service.
PowerRoo does not accept returns due to a change of mind. Warranty claims must be made within 30 days, and customers need to pre-pay for return shipping.
PowerRoo’s products are designed and built in Australia by a team of experienced engineers and automotive electricians, ensuring high-quality Australian-made 12V products.
Yes, at PowerRoo we can design and build products to your specific requirements, including different boxes, connectors, wire gauges, power outlets, USB outlets, voltmeters, and accessories. Including building custom wiring harnesses and suppling complete systems. Contact us today for a quote.
The PowerRoo team has technical qualifications in the automotive electrical field, and engineering qualifications in electrical, electronics, mechanical design, hardware, and embedded software, all backed by strong technical support.
We have a commitment to authenticity and service, at PowerRoo we ensure all products are of the highest quality and are backed by excellent customer support.
At PowerRoo we strive to minimise our environmental footprint in every decision we make, aligning with our values of respecting our country and the bush for all to enjoy for generations to come.