REDARC SBI12D Dual Battery Isolator 12V 100A Smart Solenoid

The REDARC SBI12D is a smart battery isolator designed to automatically manage dual battery systems in 4WD vehicles, RVs, and marine applications. This intelligent 100-amp solenoid isolator ensures your auxiliary battery remains charged while protecting your main starter battery from discharge.

Key Features:

• 12-volt DC operation with 100-amp continuous current rating
• Automatic voltage-sensing technology connects batteries when charging voltage is detected
• Isolates auxiliary battery when engine is off to protect starter battery
• Bi-directional charging allows either battery to charge the other
• Built-in spike protection and thermal overload safeguards
• Compact, weatherproof construction suitable for harsh environments
• Easy installation with simple two-wire connection
• LED status indicator shows operational state

The SBI12D uses voltage-sensing technology to automatically detect when the alternator is charging, connecting both batteries to ensure the auxiliary battery receives charge. When the engine stops and voltage drops, the isolator disconnects the batteries, preventing auxiliary loads from draining the starter battery. This makes it ideal for running accessories, camping equipment, fridges, and other auxiliary loads without risking your ability to start the vehicle.

Designed and manufactured by REDARC in Australia, this battery isolator is built to withstand extreme temperatures, vibration, and moisture, making it perfect for off-road and marine use.