250A Dual Battery Smart Isolator 12V 24V Universal VSR For Sale

250A Dual Battery Smart Isolator 12V/24V Universal VSR is a voltage-sensitive relay designed to manage a dual battery setup automatically. It charges the auxiliary battery when the main battery reaches the proper voltage, then isolates it when power drops, helping protect the starter battery from unnecessary drain.

This kit is built for 12V/24V universal systems and is suitable for boats, yachts, RVs, off-road vehicles, trucks, ATVs, UTVs, and other vehicles that rely on multiple electrical devices. With a dustproof outdoor-ready casing and included installation accessories, it offers a practical solution for reliable battery control in demanding environments.

• Complete kit included: 250A dual battery smart isolator, 200A fuse and fuse holder, 6 wiring terminals, and 2 rubber protective covers
• Universal 12V/24V support: Works with a wide range of dual battery systems for flexible installation
• 250A maximum current: Supports high-demand electrical setups with stable performance
• Smart voltage sensing: Automatically starts charging when sufficient voltage is detected, with no manual switch needed
• Battery protection: Helps isolate the starter battery when the engine is off to reduce power loss
• Built for tough conditions: IP54 protection rating, operating temperature from -20°C to 85°C, and quiescent current under 10mA
• Wide vehicle compatibility: Ideal for marine, RV, off-road, and utility Contact current rating: 250A | Current rating: 200A | Contact type: Normally Open | Connector type: Clamp | Contact material: Metal | Item weight: 1.56 lb
  What is in the Package
  • NO
  • 【Package Includes】 Includes 250 amp dual battery smart isolator ×1, 200A fuse and fuse holder ×1, wiring terminals ×6, and rubber protective covers ×2. Complete accessories make installation easier and help build a reliable dual battery system
  Key Features
  • 【Package Includes】 Includes 250 amp dual battery smart isolator ×1, 200A fuse and fuse holder ×1, wiring terminals ×6, and rubber protective covers ×2. Complete accessories make installation easier and help build a reliable dual battery system
  • 【Specifications】 The 250 amp dual battery isolator 12v 24v supports universal 12V/24V systems with a maximum current of 250A. IP54 protection, -20°C to 85°C operating temperature, and <10mA quiescent current provide stable performance in tough environments
  • 【Smart Battery Isolation】 This dual battery smart isolator 250 amp 12v 24v automatically connects and disconnects the auxiliary battery. It charges the secondary battery while the engine is running and isolates it when the engine is off to help protect the starter battery from power drain
  • 【Voltage Sensing Technology】 Built with smart battery isolator vsr 250 amp technology, the unit detects main battery voltage and automatically activates the charging circuit when enough power is available. No manual switch or complex wiring is required
  • 【Wide Application】 The battery isolator 250 amp 12v 24v is ideal for boats, yachts, RVs, off-road vehicles, trucks, ATVs, UTVs, and other vehicles that need a reliable dual battery charging and isolation solution
  Specifications Item Weight 1.56 pounds Connector Type Clamp Contact Current Rating 250 A Contact Material Metal Contact Type Normally Open Current Rating 200 A Included Components NO Item Highlight Voltage Sensitive Relay for Marine RV UTV Car Boat Truck Trailer ATV Camper Moto Shipping & Returns Shipping Same-day shipping. Free shipping for the customer. Returns Free returns. Please contact us before initiating a return.