62% under what the other stores charge
Compared across 5 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.
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Lowest price we've seen: $21.99 on Nov 12 at Amazon. Tracked across 5 stores since Nov 12.
Key Features
• Dual Battery Isolation: These 12 V voltage-sensitive relay (VSR) kits connect and isolate the starter and auxiliary batteries according to voltage in automatic mode, helping limit starter-battery discharge. Choose the Auto-Only or Dual-Mode with LCD version from the options above.
• Installation Accessories: Includes battery cables, cable ends, heat-shrink tubing, screws and cable ties. Check the selected kit's instructions and your installation requirements before fitting.
• Sealed Relay: The relay has a sealed interior designed to resist dust and moisture. Follow the selected model's installation instructions for mounting and protection.
• Two Configurations: The Auto-Only model connects and disconnects automatically at set voltage thresholds, while the Dual-Mode with LCD model adds a manual override button and a display for battery status and high/low voltage protection.
• Compatibility: For suitable 12 V dual-battery systems in RVs, campers, caravans, 4x4s, trucks, boats, yachts, ATVs and UTVs. The Auto-Only SKU FDCDJDQTJMMYYIMPBV0 is not suitable for lithium batteries. Confirm battery chemistry and charging-system compatibility for the selected model before installation.
Specifications
Brand
VEVOR
Product Type
Vehicles & Parts > Vehicle Parts & Accessories > Motor Vehicle Parts > Motor Vehicle Power & Electrical Systems > Relays
Voltage
12 V
Current Rating by Model
Auto-Only (FDCDJDQTJMMYYIMPBV0): 140 A continuous. Dual-Mode with LCD (FDCDJDQTJ1000SUV7V9): 140 A maximum (within 5 minutes); VEVOR specifies continuous charging current as ≥100 A.
Available Options
Functionality Level: Auto-Only, Dual-Mode with LCD
Dual Battery Isolator Buying Guide
Not sure whether Auto-Only or LCD Dual-Mode fits your RV, 4x4, truck, ATV/UTV, or marine dual-battery setup better? Read our Dual Battery Isolator Guide for automatic isolation, LCD status, manual override, voltage protection, and installation considerations.
