3m Split Charge Relay Kit12V 140 Amp Smart Dual Battery Isolator Kit with Led Voltmeter ManualAuto Mode IP68 Waterproof Voltage Sensitive Relay VSR Kit for Truck ATV UTV Boat RV

NEVER BE STRANDEDThe dual battery isolator is connected to both the vehicles primary and secondary batteries When the vehicles primary battery reaches 133V the voltagesensitive relay automatically switches to charge the secondary battery and when the vehicles primary battery voltage drops to 128V the battery isolator cuts off the current flow to the secondary battery ensuring you always have enough power to start your motor and never get stranded SMART BATTERY ISOLATORSplit Charge Relay has a builtin voltmeter to display the voltage and supports manualautomatic switching so you can monitor the voltage at any time and switch modes as needed EASY INSTALLATIONThe VSR split charge relay kit comes with full installation accessories and cables battery cables battery terminals copper lugs heat shrinks cable ties ects All necessary accessoires for convenient use and You dont need to buy extra accessoriesthat make it easy for users to install it independently to vehicles boats recreational vehicles and other equipment SAFEEFFICIENTThe dual battery isolator efficiently manages and protects power preventing overdischarge of the main battery and ensuring full charging of the second battery With highquality materials and an IP68 waterproof dustproof and vibrationproof construction our battery isolator delivers reliable performance even in harsh environments WIDE APPLICATION Like Having Two Separate Power SourcesThe Dual Battery Isolator Set Enables Your Accessories to Run From a Separate Battery While the engine is not running on your vehicle While keeping your Main Battery Chargedpower up any ground or marine vehicle including ATVs boats cars minivans trucks RVs and yachts Perfect versatile solution for all automotive power needs