---
product_id: 472224145
title: "Heart Horse Split Charge Relay 12V 140 Amp Smart Dual Battery Isolator Manual/Auto Modes VSR-Voltage Sensitive Relay,with LED Screen Voltage Display, Fit for ATV, UTV, Boat, RV,Camper Vehicle"
brand: "heart horse"
price: "€ 71.79"
currency: EUR
in_stock: true
reviews_count: 13
category: "Heart Horse"
url: https://www.desertcart.com.cy/products/472224145-heart-horse-split-charge-relay-12v-140-amp-smart-dual
store_origin: CY
region: Cyprus
---

# IP68 waterproof rating Real-time LED voltage display 140A high-current capacity Heart Horse Split Charge Relay 12V 140 Amp Smart Dual Battery Isolator Manual/Auto Modes VSR-Voltage Sensitive Relay,with LED Screen Voltage Display, Fit for ATV, UTV, Boat, RV,Camper Vehicle

**Brand:** heart horse
**Price:** € 71.79
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up smartly, stay charged effortlessly!

## Quick Answers

- **What is this?** Heart Horse Split Charge Relay 12V 140 Amp Smart Dual Battery Isolator Manual/Auto Modes VSR-Voltage Sensitive Relay,with LED Screen Voltage Display, Fit for ATV, UTV, Boat, RV,Camper Vehicle by heart horse
- **How much does it cost?** € 71.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/472224145-heart-horse-split-charge-relay-12v-140-amp-smart-dual)

## Best For

- heart horse enthusiasts

## Why This Product

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

## Key Features

- • **Rugged & Weatherproof:** Built to withstand harsh vibrations and weather with an IP68 waterproof rating—perfect for any adventure vehicle.
- • **Advanced Voltage Protection:** Automatic circuit disconnection protects your batteries from over-discharge or over-voltage, ensuring longevity and reliability.
- • **Real-Time Voltage Monitoring:** Stay ahead with an integrated LED screen showing live battery voltage, so you never get caught off guard.
- • **Smart Dual Battery Management:** Seamlessly switch between manual and automatic modes for ultimate control over your power setup.
- • **Universal Fit & Easy Installation:** No alternator or ignition wiring needed—install quickly on ATVs, UTVs, boats, RVs, and campers with confidence.

## Overview

The Heart Horse Split Charge Relay is a 12V, 140 Amp smart dual battery isolator featuring a real-time LED voltage display and selectable manual/automatic modes. Designed for rugged use with an IP68 waterproof rating, it protects your batteries with advanced voltage-sensitive relay technology. Ideal for ATVs, UTVs, boats, RVs, and campers, it offers easy installation without alternator or ignition wiring, ensuring reliable power management on the go.

## Description

Heart Horse Split Charge Relay 12V 140 Amp Smart Dual Battery Isolator Manual/Auto Modes VSR-Voltage Sensitive Relay,with LED Screen Voltage Display, Fit for ATV, UTV, Boat, RV,Camper Vehicle : desertcart.co.uk: Automotive

Review: Can recommend - Works perfect.
Review: Simple to install - Great bit of kit, easy to install and fully documented in the instructions. My only concern being the pcb coating (like a rubber / gel) grinding away when the terminal was fitted with a wire / connection and the nut was tightened.

## Features

- 【LED SCREEN REAL-TIME VOLTAGE DISPLAY】 This dual battery isolator is constructed with a voltmeter which will display the real-time voltage, allowing you to control the battery status at any time. If you connect 2 batteries, then the voltmeter will display the battery that has high voltage. The smart battery isolator is universal fit for truck, UTV/ATV, boat, marine, bus, etc.
- 【EASY INSTALLATION AND WATERPROOF】 No need for alternator or ignition connection. After installation, it can still be used normally even if it is affected by vibration, various bad weather and other factors. At the same time, the isolator supports waterproof function, and the waterproof grade is IP68.
- 【MANUAL MODES】 Press and hold the "Power" button for 3 seconds, the upper blue (LED) indicator light is on, and the manual mode is turned on. In this mode, click the "Power" button to turn on/off the isolator. Click the "power" button, the lower red (LED) indicator light is on, and the isolator is turned on; click the "power" button again, the lower red (LED) indicator light is off, and the isolator closure.
- 【AUTOMATIC MODE】Long press the "Power" button for 3 seconds, the upper blue (LED) indicator light goes out, and the automatic mode is turned on. In automatic mode, the voltage-sensitive relay (VSR) cuts in at 13.3 volts, and the lower red (LED) indicator lights up. The voltage-sensitive relay (VSR) is cut off at 12.8 volts, and the lower red (LED) indicator light turns off
- 【Pressure Protection】： Input voltage lower than 11V or Input voltage more than 17V: Circuit will be automatically disconnected so as to protect the main battery from over discharging. Please buy and use the dual battery isolator with confident because we offer quick and excellent after-sales service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B9GMP4SZ |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 4,756 in Automotive ( See Top 100 in Automotive ) 7 in Car Relays |
| Colour | Split Charge Relay |
| Customer Reviews | 4.3 4.3 out of 5 stars (449) |
| Date First Available | 12 Aug. 2022 |
| Item Package Quantity | 1 |
| Item Weight | 200 g |
| Item model number | sku3426-yy |
| Manufacturer | TripleWaterTripleGood |
| Part number | sku3426-yy |
| Plug profile | Screw Mount |
| Product Dimensions | 6.8 x 6.8 x 5.3 cm; 200 g |
| Size | Split Charge Relay |
| Specification met | ABS |
| Wattage | 1680 watts |

## Product Details

- **Connector type:** Screw
- **Contact material:** Copper
- **Contact type:** Normally Closed
- **Current rating:** 140 Amps
- **Mounting type:** Screw Mount

## Images

![Heart Horse Split Charge Relay 12V 140 Amp Smart Dual Battery Isolator Manual/Auto Modes VSR-Voltage Sensitive Relay,with LED Screen Voltage Display, Fit for ATV, UTV, Boat, RV,Camper Vehicle - Image 1](https://m.media-amazon.com/images/I/61gf8Y00VFL.jpg)
![Heart Horse Split Charge Relay 12V 140 Amp Smart Dual Battery Isolator Manual/Auto Modes VSR-Voltage Sensitive Relay,with LED Screen Voltage Display, Fit for ATV, UTV, Boat, RV,Camper Vehicle - Image 2](https://m.media-amazon.com/images/I/71S9tAy+HwL.jpg)
![Heart Horse Split Charge Relay 12V 140 Amp Smart Dual Battery Isolator Manual/Auto Modes VSR-Voltage Sensitive Relay,with LED Screen Voltage Display, Fit for ATV, UTV, Boat, RV,Camper Vehicle - Image 3](https://m.media-amazon.com/images/I/71uCzXxBMiL.jpg)
![Heart Horse Split Charge Relay 12V 140 Amp Smart Dual Battery Isolator Manual/Auto Modes VSR-Voltage Sensitive Relay,with LED Screen Voltage Display, Fit for ATV, UTV, Boat, RV,Camper Vehicle - Image 4](https://m.media-amazon.com/images/I/71Q9trvNFrL.jpg)
![Heart Horse Split Charge Relay 12V 140 Amp Smart Dual Battery Isolator Manual/Auto Modes VSR-Voltage Sensitive Relay,with LED Screen Voltage Display, Fit for ATV, UTV, Boat, RV,Camper Vehicle - Image 5](https://m.media-amazon.com/images/I/71NrniU6qWL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Can recommend
*by S***R on 9 December 2025*

Works perfect.

### ⭐⭐⭐⭐⭐ Simple to install
*by A***R on 21 August 2023*

Great bit of kit, easy to install and fully documented in the instructions. My only concern being the pcb coating (like a rubber / gel) grinding away when the terminal was fitted with a wire / connection and the nut was tightened.

### ⭐⭐⭐⭐ Good switch
*by J***O on 7 March 2025*

Works a treat quick insbtall no problems

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**Shop now:** [https://www.desertcart.com.cy/products/472224145-heart-horse-split-charge-relay-12v-140-amp-smart-dual](https://www.desertcart.com.cy/products/472224145-heart-horse-split-charge-relay-12v-140-amp-smart-dual)

---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-26*