Photo 1 of 12V 140Amp Dual Battery Isolator Switch Waterproof Voltage Sensitive Relay (VSR). Suitable for Cars, Vehicles, RVs, ATVs, UTVs, and Boats. Not Compatible with Lithium Batteries

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Photo 1 of 12V 140Amp Dual Battery Isolator Switch Waterproof Voltage Sensitive Relay (VSR). Suitable for Cars, Vehicles, RVs, ATVs, UTVs, and Boats. Not Compatible with Lithium BatteriesPhoto 2 of 12V 140Amp Dual Battery Isolator Switch Waterproof Voltage Sensitive Relay (VSR). Suitable for Cars, Vehicles, RVs, ATVs, UTVs, and Boats. Not Compatible with Lithium Batteries