Dual Battery Isolator Kit with 12V 140A VSR, red battery cables, MIDI fuse holders, battery terminals and mounting screws

Dual Battery Isolator Kit

$219.00
$219.00 $259.00
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Dual Battery Isolator Kit with 12V 140A VSR, red battery cables, MIDI fuse holders, battery terminals and mounting screws
  • Dual Battery Isolator Kit with 12V 140A VSR, red battery cables, MIDI fuse holders, battery terminals and mounting screws
  • Dual Battery Isolator Kit VSR with digital voltage display installed in a vehicle engine bay with red cables
  • Dual Battery Isolator Kit wiring diagram connecting start and second batteries, with package contents list
  • Dual Battery Isolator Kit 12V 140A VSR with IP67 waterproof rating, shown surrounded by water droplets
  • Dual Battery Isolator Kit dimensions showing 2.57 inch VSR, 6AWG 10ft cable, 1ft battery cables and MIDI fuse holder
  • Dual Battery Isolator Kit with 12V 140A VSR, red battery cables, MIDI fuse holders, battery terminals and mounting screws
  • Dual Battery Isolator Kit VSR with digital voltage display installed in a vehicle engine bay with red cables
  • Dual Battery Isolator Kit wiring diagram connecting start and second batteries, with package contents list
  • Dual Battery Isolator Kit 12V 140A VSR with IP67 waterproof rating, shown surrounded by water droplets
  • Dual Battery Isolator Kit dimensions showing 2.57 inch VSR, 6AWG 10ft cable, 1ft battery cables and MIDI fuse holder
Dual Battery Isolator Kit

Dual Battery Isolator Kit

$219.00
$219.00 $259.00
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Description

Charge an auxiliary battery from your alternator while keeping your starter battery isolated, with a complete 140A VSR kit that includes every cable and fuse required.

  • Automatic Voltage Sensing: Connects both batteries when the start battery exceeds 13.3V and isolates them below 12.8V, preventing accessories from draining the starter battery.
  • Manual & Auto Modes: A single button switches between automatic operation and manual override for emergency jump-starting from the auxiliary battery.
  • Integrated LED Voltmeter: The built-in display shows live battery voltage, allowing quick condition checks without a separate multimeter.
  • Complete Wiring Kit: Supplied with pre-made battery cables, brass terminals and MIDI fuse holders with 80A fuses, removing the need to source extra parts.
  • Sealed Construction: A silicone-sealed housing resists water, dust and vibration for under-bonnet, 4WD, caravan and marine installations.
Specifications
  • Rating: 12V DC, 140A
  • Cut-In Voltage: 13.3V
  • Cut-Out Voltage: 12.8V
  • Housing Material: ABS polymer, silicone-sealed interior
  • Weight: Approx. 1.15 kg (complete kit)
  • Included: 1x 140A Voltage Sensitive Relay with LED Voltmeter, 3x 30 cm Red Battery Cables, 1x 3 m Red Battery Cable, 2x Positive Brass Battery Terminals, and 2x MIDI Fuse Holders with 80A Fuses.
Shipping & Returns

Free Tracked Shipping (Australia)
All orders are processed and dispatched within 1-3 business days. Enjoy free standard tracked delivery across Australia, with a total expected arrival time of 5-9 business days. For more information, please review our full Shipping & Delivery Policy.

30-Day Hassle-Free Returns
If you change your mind or are not completely satisfied, you have 30 days from delivery to return your item in its original, unused condition for a full refund. Please note that return shipping costs are the responsibility of the customer, but we will never charge you any hidden restocking fees. For more information, please review our full Return & Refund Policy.
Contact Us

Got a question about this product? The Nexura Auto team is here to help. Please reach out via our Contact Us page, or using the details below:

Business Information

  • Business Name: Nexura Auto
  • ABN: 56 437 233 044
  • Business Address: 1/457-459 Elizabeth Street, Surry Hills NSW 2010

Customer Service Contact

  • Email: support@nexuraauto.com.au
  • Phone: 1300 103 804

Operating Hours

  • Monday to Friday | 09:00 AM to 05:00 PM (AEST)

We aim to respond to all inquiries within 24 business hours.
A promotional collage with the large text 'WIDE APPLICATION' at the top. Below, three inset photos show a travel trailer with an open door and awning, a white speedboat cutting through blue water, and a red semi-truck driving on a road.

Never Flat. Always Ready.

Running a fridge or lights overnight can leave your starter battery flat and your trip stranded.

This kit keeps the two batteries separate when the engine is off and charges both when you drive, so you wake up to a vehicle that starts first time.

The NEXURA Standard

We built Nexura Auto to fix the everyday annoyances of driving. We got tired of tangled cables, dead phones, and cluttered centre consoles making a mess of our cars.

We skip the gimmicks and focus entirely on practical gear that actually works. Our products are chosen to keep your cabin organised, your devices powered, and your eyes on the road.

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