REDARC Smart Start SBI 24V 100A

REDARC Smart Start SBI 24V 100A Battery Isolator

Protect your starting battery while automatically managing your auxiliary battery with the REDARC Smart Start® SBI24 Battery Isolator. Designed for 24V dual battery systems, this microprocessor-controlled isolator delivers a 100A continuous current rating while intelligently isolating the start and auxiliary batteries to help ensure reliable vehicle starting and dependable auxiliary power.

Engineered primarily for commercial vehicles and other 24V electrical systems, the SBI24 automatically connects and isolates batteries based on system voltage. This allows the auxiliary battery to power non-essential accessories without risking excessive discharge of the primary starting battery.

REDARC's Smart Start technology incorporates power-saving electronics that minimize high-voltage transients generated by the solenoid while eliminating the voltage losses commonly associated with traditional diode battery isolators. The result is more efficient battery charging and improved electrical system performance.

Featuring advanced fault detection, LED status indication, heavy-duty silver contacts, and full surge protection, the SBI24 provides dependable battery management for commercial fleets, service vehicles, marine applications, and other demanding 24V electrical systems.

24V Operation • 100A Continuous Rating • Automatic Battery Isolation • Microprocessor Controlled • Full Surge Protection

Key Features

• 24V Dual Battery Operation: Designed specifically for commercial vehicles and other 24-volt electrical systems.
• 100A Continuous Current Rating: Provides reliable battery isolation for moderate to heavy-duty dual battery installations.
• Automatic Battery Isolation: Protects the starting battery by separating auxiliary loads when charging voltage is unavailable.
• Microprocessor-Controlled Operation: Continuously monitors battery voltage to automatically manage battery connection.
• Power Saving Technology: Reduces power consumption while minimizing high-voltage transients generated by the solenoid.
• Advanced Fault Detection: Alerts users to over-voltage and voltage drop conditions.
• LED Status Indication: Provides a quick visual indication of operating status and fault conditions.
• Heavy-Duty Silver Contacts: Long-life contact design suitable for commercial and marine environments.
• Fully Surge Protected: Helps safeguard sensitive electrical components from damaging voltage spikes.
• Compact Overmold Design: Durable housing allows easy installation where mounting space is limited.

Why It Performs

• Protects Your Starting Battery: Prevents auxiliary electrical loads from discharging the battery required to start the vehicle.
• Automatically Manages Dual Batteries: Connects and isolates batteries based on charging conditions without manual switching.
• Reduces Charging Voltage Loss: Solenoid-based isolation provides improved charging efficiency compared to traditional diode isolators.
• Designed for Commercial Applications: The 100A continuous rating is well suited for work vehicles, fleet applications, and moderate-duty electrical systems.
• Improves System Reliability: Fault detection, surge protection, and low-maintenance operation provide dependable long-term performance.
• Built for Mobile Environments: Rugged construction withstands vibration, harsh operating conditions, and daily commercial use.

Technical Specifications

• Brand: REDARC
• Product: Smart Start® Battery Isolator
• Model: SBI24
• System Voltage: 24V
• Continuous Current Rating: 100 Amps
• Battery Management: Automatic Voltage Sensing
• Control Type: Microprocessor Controlled
• Protection: Surge Protection and Fault Detection
• Status Indication: LED Indicator
• Contact Material: Heavy-Duty Silver Contacts

What's Included

• (1) REDARC Smart Start® SBI24 Battery Isolator

Important Installation Note: The SBI24 is designed for 24V dual battery systems using alternator charging. Proper cable sizing, circuit protection, and installation practices are essential for safe operation. Mounting hardware, wiring, batteries, and additional electrical components are sold separately.

Ideal For

• Commercial Vehicles
• Fleet Vehicles
• Service Trucks
• 24V Dual Battery Systems
• Industrial Equipment
• Marine Electrical Systems
• Auxiliary Battery Installations
• Work Vehicles
• Remote Operations
• Heavy-Duty Electrical Upgrades

Why Choose the REDARC Smart Start SBI24?

• Purpose-built for reliable 24V dual battery management.
• Automatically protects the starting battery from excessive discharge.
• 100A continuous rating supports a wide range of commercial electrical systems.
• Microprocessor-controlled operation provides intelligent, automatic battery isolation.
• Power-saving technology minimizes voltage loss compared to traditional diode isolators.
• Built to REDARC's proven standards for commercial, marine, and demanding vehicle applications.

Why Buy from Expedition Superstore?

• Authorized REDARC Dealer: Shop genuine REDARC battery management, charging, solar, and vehicle electrical products backed by knowledgeable overland and commercial vehicle specialists.
• Complete Power Solutions: Find battery isolators, BCDC chargers, lithium batteries, solar panels, inverters, and electrical accessories all in one place.
• Expert System Support: Get help selecting the right battery management solution for your vehicle, fleet, or off-grid electrical system.
• Free Shipping: Enjoy free shipping on qualifying orders over $349 so you can spend less on freight and more on your build.
• Need help designing your dual battery system? — Schedule your build chat today!