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Dual Battery Isolator 12V 140amp, Voltage Sensitive Relay VSR, Smart Battry Isolator Compatible with UTV Marine car RV Boat Truck Trailer ATV Camper Moto, Not Fit for Lithium Batteries

4.3 (10) Write Review
Free shipping on orders over $29.99

$21.99

$ 9 .99 $9.99

In Stock

1.Style:12v Vsr


About this item

  • 【Function】——Voltage Sensitive Relay(VSR) cuts in at 13.3v and cuts out at 12.8v to ensure your main battery is always charged and ready to run your vehicle. The dual battery isolator can display the voltage, you can check the battery voltage in time
  • 【Secure & Effective】——When the input voltage is lower than 11V or more than 17V, the circuit will be disconnected automatically to protect batteries. IP67 waterproof rating helps smart battery isolator perform well in extreme environments
  • 【Wide Compatibility】——This 12v battery isolator is small and suitable for almost anywhere, for ATV, UTV, Boats, RV, marine, vehicle, truck and caravan. 140amp battery isolator is very useful for storing sports cars and trailers to protect batteries from drained
  • 【Emergency Condition】——The VSR can reverse charge in both manual and automatic modes. For example, when the main battery is out of power, switch to manual mode to connect the circuit, the auxiliary battery can charge the main one in reverse
  • 【After-sales Service】——We have exquisite craft, strict quality control along with excellent after-sales service. That is why our products are worthy of your purchase


Product Description

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

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Merchant Video
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Technical Specifications

Voltage 12V
Charging Current 90-120amp continuous, 160amp peak
Current Draw Charging 250mA, Standby 1mA
Cut-out Delay 3-5 Seconds
Cut-in Voltage 13.3V
Cut-out Voltage 12.8V
IP Rating IP 67

  • It is recommended to configure 60A fuse.

  • Yes. As long as the voltage of one battery reaches 13.3V, the isolator will start working and connect the two batteries. If you have any questions regarding the circuit design, we can offer one-on-one service.

  • 1. The main battery and the auxiliary battery are all lithium batteries. This isolator can be used.

    2. The main battery is a lead-acid battery, and the auxiliary battery is a lithium battery. It is recommended to use an isolator (ASIN: B0C2V7ZWQZ).

  • 1. Check the voltage of the main battery has reached 13.3V.

    2. Check the negative terminals of the primary and secondary batteries are connected.

    3. Check the black negative cable of the product is connected to the negative battery terminal.

  • This is a normal phenomenon, the reason is that the voltage difference between the main battery and the secondary battery is too large. Generally after charging for a period of time, this phenomenon will disappear.

1

Perkins
Reviewed in Canada on February 5, 2025
Came as promised and works very well easy install
Brandyn D.
Reviewed in the United States on February 25, 2025
Housing cracked in multiple places when removing the removable tabs for wires
Christopher Phillips
Reviewed in the United States on August 20, 2024
great thing to have on your boat with two batteries. It was easy to install and works great.
Ricardo Salazar
Reviewed in Mexico on July 15, 2024
lo tengo usando por mucho tiempo y sigue funcionando perfecto
G. Kelly Rivers
Reviewed in the United States on June 8, 2024
I used this mini Isolator on my 01 gsxr750 to add a second battery for my accessories and protect my main battery. Worked like a charm for motorcycle camping and being able to recharge it for my trip.
Customer
Reviewed in Canada on December 2, 2024
Would be better and safer if it came with fuses.
Matt D.
Reviewed in the United States on October 28, 2024
Using this for charging the second battery for trolling motor on my boat. Has been working fine. Only kicks on at 13.4 volts or so for charging like it should. Have had no problems.
Jeff Saldivar
Reviewed in the United States on October 15, 2024
Works great on my sxs
Angelo Scalabroni
Reviewed in the United States on April 21, 2024
Kind of misleading It will cut in/engage the relay if either the starter OR the auxiliary battery voltage is 13.3v. I thought it would isolate based on the starter battery voltage only but if my auxiliary battery voltage is above 13.3v then the batteries are linked via this relay. Doesn’t work if you have a separate system charging your auxiliary battery(I have solar) UNLESS you want to charge your "starter" battery as well. If mine is just defective then I will delete this review.
Izreal3345
Reviewed in the United States on September 2, 2023
This is the unit to have if your running 2 batteries it works very well to separate the power and charging voltage it’s easy to install it’s very sturdy and of good quality highly recommended
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