Voltage Sensitive Relay 12V 140AMP:The Voltage Sensitive Relay allows two batteries to be charged from your engine alternator at the same time. When your engine is turned on and the starting battery is fully charged, the isolation kit will start charging the second (auxiliary) battery at the same time.
Wide application:Smart dual battery isolator help you to connect high-power electrical appliances without worrying about short circuits, such as winches, stereos, lights, air conditioners, and more.
Better Sealed for Water Resistance: Built to withstand various weather environments. Not only made of high-quality material housing but also adopt the silicone sealed interior to protect the battery isolator.
Easy to Install & Use: The package of car battery isolator comes with hardware necessary for the installation and the instruction manual. The wire to the ground.
compatible with most RVs, Cars Vehicles, ATVs, UTVs, Polaris, Can Am, Boats, 12VDC Marine, 4wd, caravan, etc.