Dual Battery Isolator Kit - 12 Volt 140 Amp with Voltage Sensitive Relay for UTV



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【Voltage Sensitive Relay Dual Battery Kit】 - It allows two batteries to be charged from your engine alternator at the same time. When your engine is on and the start battery is sufficiently charged the isolator kit will begin charging the second (auxiliary) battery simultaneously.

【Zero Voltage Drop】 - It is the only unit designed with cutting edge programming to deliver optimum performance. When the voltage of the start battery drops the isolator kit disengages from charging the auxillary battery. This isolates the start battery and eliminates the possibility of draining it, ensuring that you always have enough charge to start your engine.

【Weather Resistance】 - It is also built to withstand extreme weather environments, vibration and is water resistant. It is safe for use even for your vehicled needs in dusty, wet and unexpected extreme weather environments.

【Wide Compatibility】 - It was built ultra-small to fit almost anywhere! A perfect fit under the hood to get close to your dual batteries. Suitable for UTV, 12VDC Marine, 4wd, caravan and solar applications.

【Buy With Confidence】 - This dual battery isolator kit with printed installation instruction manual gives you the power for your recreation without needing to worry about getting home after.

Kits come with:
1-Smart Battery Isolator with mounting screws
1-6 meter (over 18 feet) length of 10mm red battery cable with eyelets on both ends
1-2 foot length of black battery cable
2-Positive Marine Battery terminals
1-Negative Marine Battery terminal
1-10 gauge copper crimp lug
2-16-8 Copper crimp lugs
2-Red heat shrink
1-Insulated blue ring terminal
6-8 inch black cable ties


  1. Before fitting the battery terminal to the positive side if the start battery. Check the type of the existing battery terminal and if it has a stud and nut on the terminal to secure the existing wiring connection to the existing terminal.
  2. Check that the SMART BATTERY ISOLATOR disengages when the start battery's voltage falls below cut-out 12.8V. This can take some time so to speed up the process turn on the headlights or leave the door open and interior lights on.