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The REDARC Smart Start® SBI12D is a microprocessor controlled battery isolator used in a dual battery system. It is designed to be used in dual battery systems as a solenoid priority system to protect the start battery from excessive discharge. The SBI12D provides 12 volt DC incorporating 100A of continuous ratings.
The dual sensing model is used to isolate the start and auxiliary batteries in a system where the auxiliary battery may also be charged by an external source such as Solar panels or an external AC battery charger. The SBI12D also allows the start battery to be charged by the external source once the auxiliary battery reaches 13.2 volts. This is useful to top up the start battery.
Power Saving Technology
The Smart Start SBI12D 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 sophisticated fault detection and LED indication of operation to warn the user of faults including over-voltage, voltage drop and excessive current draw conditions.
Used primarily in 4WD and commercial vehicles, the Smart Start SBI is a safe way to charge an auxiliary battery and should often be installed with a high quality fuse kit.
To view product flyer, click here.
Not sure what dual battery system is best for your vehicle? Let Shaun Whale explain more.
See the correct way to mount a Smart Battery Isolator
See a basic Smart Battery Isolator install
For reviews on the Smart Start Battery Isolator, watch the below
What is a smart battery isolator and why would you need it?
Come behind the scenes at REDARC as Shaun Whale teaches you how to choose the best dual battery setup for your 4WD.
Explaining offroad battery chargers - with Patriot Campers
Review by Pat Calinan from 4x4 Adventure
REDARC Smart Start Dual Battery Isolator Features with Carlisle Rogers 4WD Touring Australia
The difference between a REDARC SBI & BCDC with 4WD NZ