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✔ Manufacturer warranty: we help with claims
✔ Fitment question? Email [email protected]
Shipping: Ships from the manufacturer or distributor. Processing times vary by manufacturer; we'll email tracking as soon as your order ships.
Free shipping on orders $100+ to the contiguous U.S. (flat $12.99 under $100)
The REDARC Smart Start® SBI12 is a microprocessor-controlled battery isolator which protects the start battery from excessive discharge, while allowing the auxiliary battery to supply charge to non-essential loads. It is used as a solenoid priority system in dual battery systems and provides 12V DC incorporating 100A of continuous ratings. The SBI range manages battery charge for your secondary battery while on the move.
The battery isolator is mostly used in 4WD and commercial vehicles. It incorporates electronic components that prevents the solenoid from generating high voltage transients. Due to the voltage drop associated with diode type isolation, it’s better than a diode battery isolator. A low standby current draw and fault detection and LED indication of operation warns users of faults such as voltage drops, over-voltage, and excessive current draw conditions. Safely maintain the charge your dual battery system with the Smart Start SBI12 battery isolator.
| Part Number | SBI12 |
| Brand | REDARC |
| Max. Inrush Current | 400A |
| Max. Continuous Current | 100A |
| Turn On Voltage | 13.2V |
| Turn Off Voltage | 12.7V |
| Turn On Delay | 5 seconds |
| Turn Off Delay | 10 seconds |
| Standby Current | <5mA |
| Weight | 7 oz (200 g) |
| Height | 2.48" (70mm) |
| Width | 2.95" (75mm) |
| Depth / Length | 3.15" (80mm) |
| Warranty | 2 Years |
| System Voltage | 12V |
| Output Voltage | 12V DC |
| Input Fuse Rating | 100A |
| Output Fuse Rating | 100A |
Universal application, not vehicle-specific.
Will it fit my vehicle?
See the Fitment section above. If you are unsure, email [email protected] before ordering and we will confirm fitment.
What warranty does it have?
REDARC covers this product with a 2-year warranty.
Should I have it professionally installed?
REDARC recommends installation by a qualified auto electrician or technician.
Why Choose Venture Overland Company: Free shipping on orders over $100, most orders ship in 1-2 business days, and every order is covered by our 30-day return policy.
Gear Up for Adventure
At Venture Overland Company, our motto is simple: Find Your Way. Whether you're hitting the backroads for a weekend escape or building the ultimate overland rig for months on the trail, we're here to help you get there. Every part we carry is chosen to give you the reliability, performance, and confidence to go farther and explore more. Load up, point the wheels off the pavement, and find your way—your adventure starts here.
Empowering Your Journey
At Venture Overland Company, we provide a carefully curated selection of top-tier brands and expert guidance to help you enhance your vehicle’s performance. Our community-driven approach ensures every product integrates seamlessly into your adventures, whether upgrading your Jeep, Toyota, or Ford. With our focus on quality, versatility, and outstanding service, we’re more than a store—we’re your partner in every off-road experience.
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