DEWINNER Adjustable Dual Battery Isolator 12V 140Amp Smart Battery Isolator, Voltage Sensitive Relay for Truck Marine ATV UTV RV Boat Camper

[Adjustable Dual Battery Isolator] DEWINNER 12V 140Amp battery isolator is designed for two battery systems, allowing for two separate power sources while charging by one alternator. There is no need to worry about the battery draining out and getting stuck on the road.
[Voltage Setting Function] Efficient voltage management allows you to freely adjust the CUT-IN/CUT-OUT voltage for different types of batteries. The adjustable voltage range for the main battery is 4.5V-20V.
[Delay Setting Function] The New adjustable delay function avoids frequent switching on and off of the isolator due to unstable current, which prolongs the isolator and battery life. The delay time range is 0s-60s, with a recommended delay time of 15s.
[Manual/Auto Mode] The battery isolator also combines automatic and manual modes. You can switch between any modes as needed. Battery Isolator 12v is equipped with an LED display that shows the current-voltage status of both batteries in real-time.
[Easy Installation] The VSR Split Charge Relay Kit comes with screws for easy, stand-alone mounting to vehicles, boats, recreational vehicles, and other equipment.

Hello,