Smart Start Battery Isolator 12V 100A
The REDARC Smart Start® SBI12 is a microprocessor-controlled dual battery isolator designed specifically for use in multi-battery applications as a solenoid priority system. This advanced isolator protects the start battery from excessive discharge while allowing the auxiliary battery to supply charge to non-essential loads.
Key Features
- Microprocessor Control: Advanced electronic control system for reliable operation
- Automatic Operation: Engages at 13.2V and disengages at 12.7V for optimal battery management
- 100A Continuous Rating: Handles up to 100 amps continuous current with 400 amp inrush capability
- Superior Design: Better than diode battery isolators due to no voltage drop associated with diode-type isolation
- Built-In Protection: Incorporates electronic components that prevent the solenoid from generating high voltage transients
- Fault Detection: Sophisticated fault detection with LED indication for over-voltage, voltage drop and excessive current draw conditions
- Low Power Consumption: 550mA during charging, only 10mA standby current draw
- Override Function: Manual override capability allows batteries to be linked together when required
- Weatherproof: IP66 rating for protection against dust, water, and vibration
Technical Specifications
- Operating Voltage: 12V DC
- Continuous Current: 100A (not recommended for winching)
- Maximum Inrush Current: 400A
- Cut-in Voltage: 13.2 - 13.4 Volts
- Cut-out Voltage: 12.6 - 12.7 Volts
- Minimum Operating Voltage: 10 Volts
- Current Draw: 550mA charging, 10mA standby
- Recommended Fuse: 150A
- Minimum Cable Size: 14mm² (6 B&S)
Construction & Reliability
Featuring silver contacts for longer life and cooler operating temperatures, the SBI12 is built tough for Australian conditions. The compact overmoulded design ensures durability in harsh 4WD and commercial vehicle environments. Installation is straightforward with comprehensive wiring diagrams and instructions provided.
Ideal Applications
Primarily designed for 4WD and commercial vehicles, the Smart Start SBI12 is perfect for dual battery systems where reliable battery isolation is essential. It ensures your start battery remains charged while powering auxiliary equipment such as fridges, lights, and other 12V accessories.
Professional installation by a qualified auto electrician is recommended.