Dual Battery Isolator Kit, 12V 300 Amp, Manual and Automatic VSR Voltage Sensitive Relay with Voltmeter, LCD Screen, Smart Battery Isolator, Compatibl

Product Features High Battery Compatibility With 300A high current, our dual battery isolator kit is the optimal charging solution for high-capacity dual-battery systems. It can adjust start-stop voltage, compatible with lithium, lead-acid and other battery types Manual & Automatic Modes No more breakdowns! This voltage sensitive relay enables one-click switching to manual mode, letting your fully charged auxiliary battery reverse-charge a depleted main battery. No jumper cables needed-start the vehicle instantly Intelligent Delay Function With an adjustable delay time of 3-60 seconds, this VSR isolator effectively avoids frequent switching, significantly extending the service life of the isolator and battery Dual Voltage Display The high-brightness display shows the accurate voltage of the two batteries in real time (range 4.5V-20V). Our 12v split charge isolator kit can easily diagnose circuit problems and confidently master the system status All-Round Protection Featuring overvoltage and undervoltage protection, the dual battery smart isolator is sturdy, durable, shockproof, and dustproof. It provides stable and reliable power for your RV, truck, boat, or off-grid system