Digital VSR Battery Isolator 12V 140A with red LED voltmeter display, power button and mounting screws

Digital VSR Battery Isolator

$119.00
$119.00 $159.00
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Digital VSR Battery Isolator 12V 140A with red LED voltmeter display, power button and mounting screws
  • Digital VSR Battery Isolator 12V 140A with red LED voltmeter display, power button and mounting screws
  • Digital VSR Battery Isolator wiring diagram linking start battery 1, start battery 2, engine and battery charger
  • Digital VSR Battery Isolator labelled features: manual/auto mode, power button, voltmeter and indicator light
  • Digital VSR Battery Isolator dimensions 68mm high, 68mm wide and 56mm deep
  • Digital VSR Battery Isolator 12V 140A with red LED voltmeter display, power button and mounting screws
  • Digital VSR Battery Isolator wiring diagram linking start battery 1, start battery 2, engine and battery charger
  • Digital VSR Battery Isolator labelled features: manual/auto mode, power button, voltmeter and indicator light
  • Digital VSR Battery Isolator dimensions 68mm high, 68mm wide and 56mm deep
Digital VSR Battery Isolator

Digital VSR Battery Isolator

$119.00
$119.00 $159.00
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Description

Split-charge two 12V batteries with a compact, IP65-rated voltage sensitive relay that displays real-time voltage and draws zero current in storage mode.

  • Starter Battery Protection: Combines both batteries while charging above 13.3V and isolates them below 12.8V so accessories cannot drain the starter battery.
  • Real-Time Voltage Display: An integrated digital voltmeter shows live system voltage for quick at-a-glance monitoring.
  • No Diode Voltage Drop: Relay-based switching avoids the approx. 0.6V loss of diode isolators, delivering full alternator voltage to the auxiliary battery.
  • Engine Bay Rated: Glass-fibre reinforced nylon enclosure with IP65 sealing and ISO 8846 ignition protection for engine bay and marine use.
  • Zero-Draw Storage Mode: An optional storage mode cuts standby consumption to 0 mA to preserve battery charge during long-term parking.
Specifications
  • Material: Glass-fibre reinforced nylon, ABS and metal
  • Rating: 12V DC; 100–125A continuous, 140A intermittent
  • Cut-In / Cut-Out Voltage: 13.3V / 12.8V
  • Power Consumption: 10 mA standby, 330 mA engaged, 0 mA storage mode
  • Terminal Studs: M6 (1/4 inch)
  • Water Resistance: IP65
  • Dimensions: 8 x 8 x 7 cm
  • Included: 1x 140A Digital Voltage Sensitive Relay, 2x Long Mounting Screws, 2x Short Mounting Screws, 1x Crimp Terminal, and 1x Instruction Manual. Battery cables not included.
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.
Instruction diagram showing how to switch a dual battery inverter between Automatic and Manual modes, with labeled panels, arrows, and hand icons demonstrating button presses and disconnection.

Smart Split. Zero Drain.

A second battery is only useful if it never flattens the one that starts your engine.

This compact relay handles the switching automatically and shows voltage in real time, so you can run your camp setup without second-guessing your start.

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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