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The 12V 140A Smart Battery Isolator (VSR) is designed to safely manage and charge two batteries simultaneously in vehicles. It automatically connects and disconnects the auxiliary (house) battery from the starter battery based on voltage levels, ensuring the main battery is always protected from discharge.

This smart isolator is ideal for cars, trucks, RVs, boats, pickups, and marine applications, providing reliable power management for accessories like refrigerators, inverters, lights, and camping equipment.

Key Features

• Smart Voltage Sensitive Relay (VSR)

• Automatic & Manual Operation Modes

• High Current Capacity – 140 Amps

• Built-in Digital Voltage Display

• Protects Starter Battery from Over-Discharge

• Compact, Solid & Heat-Resistant Housing

• Easy Installation with Mounting Hardware

• LED Status Indicators for Working Mode

Technical Specifications

• Operating Voltage: 12V DC

• Current Rating: 140A

• Cut-in Voltage: 13.3V DC

• Cut-off Voltage: 12.8V DC

• Operation Modes: Auto / Manual

• Display Type: LED Digital Voltage Display

• Material: High-grade ABS Plastic

• Relay Type: Smart PC Type Isolator

• Mounting Type: Surface Mount

Product Dimensions

• Length: 2.7 Inch (6.8 cm)

• Width: 2.7 Inch (6.8 cm)

• Height: 2.1 Inch (5.3 cm)

Applications

• Cars & SUVs

• Pickup Trucks

• Commercial Trucks

• RVs & Camper Vans

• Boats & Marine Vehicles

• Solar & Dual Battery Systems