VEVOR Dual Battery Isolator Kit, 12V 300 Amp 33.6 mm² (2 AWG), Manual and Automatic VSR Voltage Sensitive Relay with Voltmeter, LCD Screen, Smart Battery Isolator, Compatible with Lithium Batteries, for UTV, ATV

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. Package includes: 1 x 300A smart lithium battery isolator (with mounting screws), 1 x 20 ft (6 m) 2 AWG red cable, 1 x 2 ft (0.6 m) 2 AWG black ground cable, 3 x pure copper connectors, 2 x heat shrink tubes, 4 x cable lugs, 6 x zip ties