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Dual Battery Isolator 140 AMP Voltage Sensitive Relay VSR for 12 Volt Systems

Dual Battery Isolator 140 AMP Voltage Sensitive Relay VSR for 12 Volt Systems

$219.00
$219.00
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Overview

Smart 12V 140A Dual Battery Isolator (VSR) for Off-Grid Power Management
Keep your auxiliary battery charged without risking a dead engine. Our 140 AMP Voltage Sensitive Relay (VSR) automatically manages your vehicle's dual battery system.
When your engine starts and the alternator hits 13.3V, the isolator connects to charge your secondary battery (for fridges, lights, or winches) simultaneously. When the engine shuts down and voltage drops to 12.8V, it instantly isolates the starting battery, safeguarding your next engine crank.
Featuring a real-time LED digital voltage display and a rugged, heat-resistant housing, this automatic battery manager delivers reliable off-grid power for trucks, RVs, Jeeps, and marine vessels.

Feature

Smart Voltage Sensing (VSR): Automatically combines batteries when charging (Cut-In at 13.3V) and isolates them when discharging (Cut-Out at 12.8V). Keeps your primary start battery fully charged, ensuring you never get stranded.

Heavy-Duty 140 Amp Rating: Engineered to handle high-current demands safely. Ideal for 12V dual battery systems in RVs, 4WDs, marine vessels, and overland vehicles.

Real-Time LED Voltage Display: Equipped with a clear digital screen and LED indicators to monitor your battery status at a glance, providing ultimate peace of mind during off-grid adventures.

Rugged & Weatherproof Construction: Built with premium, flame-retardant materials to withstand harsh under-hood environments, vibration, and extreme weather.

Complete DIY Installation Kit: Comes with everything you need—high-quality cables, fuses, connectors, and clear instructions. No complex alternator wiring required.

Dimension (unit: mm)

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Detail

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