---
product_id: 613524000
title: "5m Split Charge Relay Kit, 12v 140Amp Smart Dual Battery Isolator, Voltage Sensitive Relay Kit with LED Screen Display for Campervan Van Truck SUV RV ATV UTV Boat"
brand: "sofofux"
price: "NT$5160"
currency: TWD
in_stock: true
reviews_count: 8
category: "Sofofux"
url: https://www.desertcart.tw/products/613524000-5m-split-charge-relay-kit-12v-140amp-smart-dual-battery
store_origin: TW
region: Taiwan
---

# IP68 waterproof & shockproof LED voltage display 12V 140A high-capacity relay 5m Split Charge Relay Kit, 12v 140Amp Smart Dual Battery Isolator, Voltage Sensitive Relay Kit with LED Screen Display for Campervan Van Truck SUV RV ATV UTV Boat

**Brand:** sofofux
**Price:** NT$5160
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your freedom with smart, seamless dual battery control!

## Quick Answers

- **What is this?** 5m Split Charge Relay Kit, 12v 140Amp Smart Dual Battery Isolator, Voltage Sensitive Relay Kit with LED Screen Display for Campervan Van Truck SUV RV ATV UTV Boat by sofofux
- **How much does it cost?** NT$5160 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/613524000-5m-split-charge-relay-kit-12v-140amp-smart-dual-battery)

## Best For

- sofofux enthusiasts

## Why This Product

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

## Key Features

- • **Smart Voltage Sensing:** Automatically activates at 13.3V and disconnects at 12.8V to protect and optimize battery life.
- • **Peace of Mind Warranty:** Backed by a 1-year after-sales warranty, because your journey deserves dependable gear.
- • **Universal Compatibility:** Perfect for campervans, trucks, SUVs, ATVs, boats, and more — power your adventures without compromise.
- • **Built to Brave the Elements:** Rugged IP68 waterproof and shockproof design ensures reliable performance in harsh environments.
- • **Plug-and-Play Power Management:** Complete 5m kit with all cables & accessories for effortless installation in any vehicle or boat.

## Overview

The 5m Split Charge Relay Kit is a robust 12V 140A voltage-sensitive relay system designed for dual battery setups in vehicles and marine craft. Featuring an IP68 waterproof and shockproof build, an intuitive LED voltage display, and a comprehensive accessory pack, it ensures safe, automatic battery isolation and charging. Ideal for campervans, trucks, SUVs, and boats, this kit delivers reliable, maintenance-free power management backed by a 1-year warranty.

## Description

Efficiently manage dual battery systems with this 12V 140A smart relay kit. Includes all installation accessories for easy setup in campers, vans, trucks, and more.

Review: Rock-Solid Split Charge Kit for Van Builds - I bought this while converting my van into a camper, and it’s been absolutely flawless from day one. Performance: The voltage-sensitive relay does exactly what it’s supposed to — it kicks in automatically when the engine’s running and disconnects when it’s off, keeping both batteries protected without me having to think about it. I’ve tested it with a fridge, lights, and a diesel heater running off the leisure battery, and it’s been completely reliable. Installation: The kit came with everything needed, and the 8 metres of cable gave me more than enough length for a clean install from the alternator to the rear of the van. The instructions were clear, and the relay itself feels solid and well-built, not cheap or flimsy like some of the knock-off kits out there. Overall: If you’re doing a van or camper conversion, this is one of those plug-and-forget components — once it’s wired in, it just works. No voltage drop issues, no rattling, no overheating.
Review: Efficient - Efficient

## Features

- 【5M Split Charge Relay Kit】: The VSR split charge relay kit comes with full installation accessories: 1* Battery isolator, 4* PVC red main power cable(4m/0.5m/0.25m/0.25m), 1* black earth cable, 4* fuses, 2* Fuse Holders , 2* Battery positive negative terminals,7 * Heat Shrink, 9* foam sticky pads, 4* Insulated Blue Ring Terminalsand, 10* cable ties, 18* screws, 1 * Instruction manual and so on. That make it easy for users to install it independently to vehicles, boats, recreational vehicles, and other equipment.
- 【Safe & Efficient】: Our voltage sensibility relay are made of high quality materials and IP68 waterproof and shockproof construction, providing reliable performance even in harsh environments. The dual battery isolator effectively protects the electrical energy from over-discharge of the main battery and ensures that the second battery is fully charged.
- 【Upgraded Battery Isolator】: Automatic/Manual 12V 140 Amp battery isolator equipped with an LED voltage display for a clear view of the voltage, the voltage-sensitive relay activates when the voltage is 13.3V and de-energises when the voltage is 12.8V to ensure that your main battery is always fully charged and ready to start your vehicle.
- 【Widely Used】: Our split charge relay kit can power any ground or marine vehicle including campervan van ATVS, boats, cars, minivans, trucks, motorhomes and yachts;The perfect versatile solution for all automotive power needs.
- 【Buy with Confidence】: Split charging relay kit comes with 1 year after-sales warranty, if you have any questions, please contact us.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CTK42FZZ |
| Batteries Required? | No |
| Best Sellers Rank | 8,156 in Automotive ( See Top 100 in Automotive ) 19 in Car Relays |
| Customer Reviews | 4.5 4.5 out of 5 stars (55) |
| Date First Available | 30 Jan. 2024 |
| Included components | Split Charge Relay Kit |
| Item Weight | 1.38 kg |
| Item model number | 5M |
| Manufacturer | Sofofux |
| Measurement System | Inch and Metric |
| Part number | FGHU003 |
| Plug profile | Chassis Mount |
| Product Dimensions | 28 x 25 x 7 cm; 1.38 kg |
| Specification met | ABS |

## Product Details

- **Connector type:** Screw
- **Contact material:** Bronze
- **Contact type:** Normally Open
- **Current rating:** 140 Amps
- **Mounting type:** Chassis Mount

## Images

![5m Split Charge Relay Kit, 12v 140Amp Smart Dual Battery Isolator, Voltage Sensitive Relay Kit with LED Screen Display for Campervan Van Truck SUV RV ATV UTV Boat - Image 1](https://m.media-amazon.com/images/I/71a5F3yOaqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Rock-Solid Split Charge Kit for Van Builds
*by I***N on 8 October 2025*

I bought this while converting my van into a camper, and it’s been absolutely flawless from day one. Performance: The voltage-sensitive relay does exactly what it’s supposed to — it kicks in automatically when the engine’s running and disconnects when it’s off, keeping both batteries protected without me having to think about it. I’ve tested it with a fridge, lights, and a diesel heater running off the leisure battery, and it’s been completely reliable. Installation: The kit came with everything needed, and the 8 metres of cable gave me more than enough length for a clean install from the alternator to the rear of the van. The instructions were clear, and the relay itself feels solid and well-built, not cheap or flimsy like some of the knock-off kits out there. Overall: If you’re doing a van or camper conversion, this is one of those plug-and-forget components — once it’s wired in, it just works. No voltage drop issues, no rattling, no overheating.

### ⭐⭐⭐⭐⭐ Efficient
*by M***E on 31 December 2025*

Efficient

### ⭐⭐⭐⭐ Easy to install
*by E***Y on 30 May 2025*

Easy to install and good quality. Using on a home DIY van build to charge leisure battery. Worth the money

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**Shop now:** [https://www.desertcart.tw/products/613524000-5m-split-charge-relay-kit-12v-140amp-smart-dual-battery](https://www.desertcart.tw/products/613524000-5m-split-charge-relay-kit-12v-140amp-smart-dual-battery)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-10-13*