Heart Horse 6m Split Charge Relay Kit,12V 140 Amp Smart Dual Battery Isolator Kit with Led Voltmeter Manual/Auto Mode IP68 Waterproof Voltage Sensitive Relay VSR Kit for Truck ATV UTV RV Boat

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  • SMART BATTERY ISOLATOR Split Charge Relay has a built-in voltmeter to display the voltage and supports manual automatic switching, so you can monitor the voltage at any time and switch modes as needed.
  • NEVER BE STRANDED The dual battery isolator is connected to both the vehicle's primary and secondary batteries. When the vehicle's primary battery reaches 13.3V, the voltage-sensitive relay automatically switches to charge the secondary battery, and when the vehicle's primary battery voltage drops to 12.8V, 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.
  • SAFE&EFFICIENT The dual battery isolator efficiently manages and protects power, preventing over-discharge of the main battery and ensuring full charging of the second battery. With high-quality materials and an IP68 waterproof, dustproof, and vibration-proof construction, our battery isolator delivers reliable performance even in harsh environments.
  • WIDE APPLICATION Like Having Two Separate Power Sources,The 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 Charged,power up any ground or marine vehicle including ATVs, boats, cars, mini-vans, trucks, RVs, and yachts; Perfect versatile solution for all automotive power needs.

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