---
product_id: 166083211
title: "RANSOTODual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger Battery Disconnect Switch Battery Isolator 12v"
brand: "ransoto"
price: "₨2407"
currency: SCR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sc/products/166083211-ransotodual-battery-isolator-kit-12-volt-140-amp-voltage-sensitive
store_origin: SC
region: Seychelles
---

# 12V voltage sensitive tech 140A high-capacity relay Complete install kit included RANSOTODual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger Battery Disconnect Switch Battery Isolator 12v

**Brand:** ransoto
**Price:** ₨2407
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay charged, stay unstoppable—power your journey with confidence!

## Quick Answers

- **What is this?** RANSOTODual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger Battery Disconnect Switch Battery Isolator 12v by ransoto
- **How much does it cost?** ₨2407 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/166083211-ransotodual-battery-isolator-kit-12-volt-140-amp-voltage-sensitive)

## Best For

- ransoto enthusiasts

## Why This Product

- Trusted ransoto brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Up Without Limits:** Seamlessly charges dual batteries to keep your adventures powered all day.
- • **Plug & Play Installation:** No special tools needed—get your dual battery system up and running in no time.
- • **Built for the Rugged Life:** Shockproof, waterproof, and heat-resistant design built to withstand extreme conditions.
- • **Smart Voltage Sensitive Relay:** Automatically isolates batteries to protect your main power source and extend battery life.
- • **Versatile Vehicle Compatibility:** Perfect for RVs, trucks, boats, and SUVs—power your lifestyle wherever you go.

## Overview

The RANSOTO Dual Battery Isolator Kit features a 140 Amp voltage sensitive relay designed for 12V systems, enabling simultaneous charging and isolation of two batteries. It includes all necessary cables, terminals, and mounting hardware for easy installation without special tools. Built with high temperature, shock, and waterproof materials, it’s ideal for vehicles like RVs, trucks, boats, and SUVs, ensuring reliable power management on the go.

## Description

RANSOTODual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger Battery Disconnect Switch Battery Isolator 12v

## Features

- Dual Battery Isolator Kit can be widely used in a variety of 12-volt power system vehicles. Such as RV, crossovers, trucks, SUVs, camper, boat, yacht, etc.
- This package is including: 1x Voltage Sensitive Relay,1x Positive Battery Connection Cable (20 ft),1x Negative Battery Connection Cable (2 ft),2x M4x40mm Screws,3x M4x20mm Screws,1x 25-6 Toroidal Terminal Blocks,1x Negative Marine Battery Terminal,2x Positive Marine Battery Terminal,2x Red Heat Shrink Tubing,1x Black Heat Shrink Tubing,6x Cable Ties,3x Tinned copper lugs ,1x Instructions.
- Function: It can isolate the charging of two batteries, enabling vehicle accessories to draw power from the secondary battery when the engine is not running, while ensuring that the main battery is continuously charged at the same time.
- Rugged and durable: 12 volt dual battery isolator kit is made of high quality materials and advanced technology, with good high temperature resistance, shock resistance and waterproof performance.
- Installation: Easy to install and did't need special tool.

## Product Details

- **Connector Type:** Clamp, Crimp, Screw, Quick Connect
- **Contact Material:** Copper
- **Contact Type:** Normally Open
- **Current Rating:** 140 Amps
- **Mounting Type:** Panel Mount

## Images

![RANSOTODual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger Battery Disconnect Switch Battery Isolator 12v - Image 1](https://m.media-amazon.com/images/I/71GL2InQkTL.jpg)
![RANSOTODual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger Battery Disconnect Switch Battery Isolator 12v - Image 2](https://m.media-amazon.com/images/I/81ieniqXp7L.jpg)
![RANSOTODual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger Battery Disconnect Switch Battery Isolator 12v - Image 3](https://m.media-amazon.com/images/I/71Lg6JskG8L.jpg)
![RANSOTODual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger Battery Disconnect Switch Battery Isolator 12v - Image 4](https://m.media-amazon.com/images/I/71tr+MGavnL.jpg)
![RANSOTODual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger Battery Disconnect Switch Battery Isolator 12v - Image 5](https://m.media-amazon.com/images/I/71ewQU+OdTL.jpg)

## Questions & Answers

**Q: How long are the lengths of wire in this kit?**
A: the ground wire was shorter than I expected, approximately 20 inches as I recall

**Q: Can i hook a switch up to this isolator the change wich battery i want to use?**
A: As long as both batteries are in good shape it keeps both charged so you shouldn't need to do that

**Q: will this isolator cut off when house battery is fully charged ?**
A: This isolatordesigned to only charge house battery from altnator after start battery reaches a certain voltage and to stop draw on start battery below a specified voltage

**Q: My second battery (trolling motor battery) does not ground to anything.  Should I ground that to the primary battery or the engine block?**
A: You will need to tie the secondary (trolling) battery to the primary in order to charge. Just follow enclosed directions, applies to any 12V system.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by Z***D on August 16, 2022*

I’m a marine technician who installs similar systems on various types of boats. This was super easy and worked great. Good quality components

### ⭐⭐⭐⭐⭐ Works great on my 2012 Chevy Avalanche
*by L***X on March 25, 2023*

It keeps my backup battery charged and ready to go for my RV trailer's power when boon docking. Plus it can be used to jump my main battery if needed. Obviously you need some technical and automotive electrical skills to properly hook it up. The Avalanche I own already had a place for a spare battery and the wiring was already there to provide power to the trailer.

### ⭐⭐⭐⭐ Easy installation
*by S***D on August 11, 2023*

So far product seems to be working well. Installation diagram and instructions are pretty clear. Have connected this to charge my starter bank West Marina dual purpose, and the house battery, Renogy 200AH AGM. Will update review again in some time as it progresses

## Frequently Bought Together

- RANSOTO Dual Battery Isolator Kit 12 Volt 140 Amp Voltage Sensitive Relay Complete VSR Double Battery Automatic Charger Battery Disconnect Switch Battery Isolator 12v
- MICTUNING LED Digital Double Voltmeter, Round Panel Voltage Monitor Blue for Car Pickup RV Truck Dual Battery Pack
- TKDMR 10pcs 1/0 AWG-3/8 Battery Lugs,Heavy Duty Wire Lugs,Ring Terminals,Battery Cable Ends,0 Guage terminals,Battery Terminal Connectors with 10pcs 3:1 Heat Shrink Tubing

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-05*