150 Amp Dual Battery Smart Isolator Universal 12V/24V Voltage Sensitive Relay for ATV, UTV, RV, Truck, SUV Off-Roader Vehicle, High Current Protection Controller Split Charge Starter Relay

When the Voltage of the starting engine is higher than 13.5V(27V), powered on the isolator after 5 seconds.It is normal for the voltmeters to have an error between 0.3V.When the main and auxiliary voltmeters show that the voltage is lower than 13V(26V) for 10 minutes, disconnect the isolator immediately while it is lower than 12.5V(25V). The voltmeters is flashing after disconnection.

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