Dual Battery Isolator Kit

Adding a second battery in your vehicle or boat enables you to power your electrics without flattening your main starter battery when the engine is off. Applications include, for example, 4WD’s with a 12V fridge/freezer, a boat with bright cabin lighting, or say a tradesperson’s van or ute with an inverter powering various power tools. This Voltage Sensitive Relay (VSR) kit provides everything you need to wire up your second battery, while handling the isolation during shut-off periods. It is provided with marine-grade hardware so it can be used on a boat or vehicle. Suitable for 12V systems with a continuous rating of 140A. All wiring hardware and instructions included. 

Product Specifications:

  • Automatic isolation
  • Priority charging for Starter Battery
  • Easy to install
  • Voltage rating: 12VDC
  • Current rating: 140A
  • Cut-in voltage: 13.3V
  • Cut-off voltage: 12.8V
  • IP Rating: IP65

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Saturday: 8:00am - 1:00pm
Sunday: Closed

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All coast batteries have been Newcastle's leading supplier and installer of marine, automotive and recreational use batteries.

Business Hours

Monday to Friday: 8:00am - 5:00pm
Saturday: 8:00am - 1:00pm
Sunday: Closed