---
product_id: 744199989
title: "Gloaso 125 Amps Dual Battery Isolator VSR Split Charge Relay 12V DC Digital Voltage Sensitive Relay Automatic Charging Relay Water-Resistant"
brand: "gloaso"
price: "729 kr"
currency: ISK
in_stock: false
reviews_count: 8
url: https://www.desertcart.is/products/744199989-gloaso-125-amps-dual-battery-isolator-vsr-split-charge-relay
store_origin: IS
region: Iceland
---

# 125A max current capacity Water-resistant durable build Dual battery automatic charging Gloaso 125 Amps Dual Battery Isolator VSR Split Charge Relay 12V DC Digital Voltage Sensitive Relay Automatic Charging Relay Water-Resistant

**Brand:** gloaso
**Price:** 729 kr
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Stay charged, stay unstoppable with Gloaso Dual Battery Isolator!

## Quick Answers

- **What is this?** Gloaso 125 Amps Dual Battery Isolator VSR Split Charge Relay 12V DC Digital Voltage Sensitive Relay Automatic Charging Relay Water-Resistant by gloaso
- **How much does it cost?** 729 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/744199989-gloaso-125-amps-dual-battery-isolator-vsr-split-charge-relay)

## Best For

- gloaso enthusiasts

## Why This Product

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

## Key Features

- • **Powerful 125A Capacity:** Handles heavy-duty dual battery systems with ease, ensuring reliable power flow.
- • **Easy Panel or Surface Mount:** Quick installation with no voltage drop, maximizing efficiency and uptime.
- • **Universal 12V Compatibility:** Perfect for cars, boats, RVs, and trucks—one solution for all your dual battery needs.
- • **Smart Voltage Sensitive Relay:** Automatically charges your secondary battery only when the starter battery is full, preventing drain.
- • **Durable Water-Resistant Design:** Premium nylon shell protects against wear and moisture for long-lasting performance.

## Overview

The Gloaso 125 Amps Dual Battery Isolator is a robust 12V DC voltage sensitive relay designed to automatically manage and protect dual battery systems in vehicles, boats, and RVs. Featuring a high 125A capacity, water-resistant nylon casing, and easy installation options, it ensures your starter battery remains protected while efficiently charging your auxiliary battery without voltage loss.

## Description

Spec: Material: Nylon Color: Black Dimension approx. 2.67*2.67*2.28inch( 68* 68* 58mm) Package Weight Approx. 234g  Nominal Voltage: DC 12V Combine / Open Voltage: DC 13.3V / 12.8V Continuous Current Rating: 125A Intermittent Current Rating: 140A Power Consumption: 10mA (Standby) / 330mA (Engage) / 0mA (Storage Mode) Terminal Studs: M6( 1/4")  Features: The Digital Voltage Sensing Relay (DVSR) allows the charging of a second battery bank from any single charging source.   When the voltage on the charged bank rises sufficiently, the DVSR engages allowing the 2nd battery bank to charge.  When charging stops and voltage falls, the DVSR automatically isolates the battery banks, ensuring that engine start batteries are kept fully charged.   Digital circuitry provides superior reliability and extremely low power consumption.  Digital enhancements have introduced remote sensing circuitry, that allows an optional connection from the ignition switch, to provide the same functionality as single sense VSR and zero power consumption when engine is off.  Another benefit is a zero stand by current draw, when remote sensing circuit is utilized with a storage mode switch fitted (switch in open position).  Packing Include: 1 * Dual Battery Isolator 4 * Screws 1 * User Manual

## Features

- 【125 Amps Voltage Sensitive Relay Module】The dual battery isolator is a good replacement to charge battery systems. The Dimensions fits for Heavy Duty Modular Fuse Box Series (BF43x) and Battery Switch
- 【Universal for dc 12v car, boat, rv, trucks etc.】Protects start batteries from becoming flattened by domestic loads
- 【Great For Dual-Battery Vehicle】A max. 140 amps voltage sensitive relay (VSR) ensure you can always get your dual-battery vehicle started. Once your main starter battery charged completely , it will beginn to charge the second one
- 【Premium Quality, Durable】Premium nylon shell material made, this voltage sensitive relay is sturdy, not easy to aging, and abrasion resistant
- 【Easy to Install, Surface or panel mount optional. 】No voltage drops comparing to battery isolator diodes (0.6V). Combine / Open Voltage: DC 13.3V / 12.8V

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Gloaso |
| Part number | BSAP3647 |
| Item Weight | 227 g |
| Package Dimensions | 8.38 x 7.37 x 7.37 cm; 227 g |
| Item model number | BSAP3647 |
| Size | 68* 68* 58mm |
| Colour | Black 12V DC |
| Power source type | DC |
| Voltage | 12 Volts (DC) |
| Amperage Capacity | 125 Amps |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Plug profile | Panel Mount |
| Switch style | Ignition Switch |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Connector type:** Screw
- **Contact material:** Brass
- **Current rating:** 125 Amps
- **Mounting type:** Panel Mount
- **Brand:** Gloaso

## Images

![Gloaso 125 Amps Dual Battery Isolator VSR Split Charge Relay 12V DC Digital Voltage Sensitive Relay Automatic Charging Relay Water-Resistant - Image 1](https://m.media-amazon.com/images/I/51VkPWDHRwL.jpg)
![Gloaso 125 Amps Dual Battery Isolator VSR Split Charge Relay 12V DC Digital Voltage Sensitive Relay Automatic Charging Relay Water-Resistant - Image 2](https://m.media-amazon.com/images/I/71lkHzxf4kL.jpg)
![Gloaso 125 Amps Dual Battery Isolator VSR Split Charge Relay 12V DC Digital Voltage Sensitive Relay Automatic Charging Relay Water-Resistant - Image 3](https://m.media-amazon.com/images/I/71LhgxaiadL.jpg)
![Gloaso 125 Amps Dual Battery Isolator VSR Split Charge Relay 12V DC Digital Voltage Sensitive Relay Automatic Charging Relay Water-Resistant - Image 4](https://m.media-amazon.com/images/I/61qhMJ9zZLL.jpg)
![Gloaso 125 Amps Dual Battery Isolator VSR Split Charge Relay 12V DC Digital Voltage Sensitive Relay Automatic Charging Relay Water-Resistant - Image 5](https://m.media-amazon.com/images/I/71BGJcZ-rFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well
*by A***W on 2 June 2021*

Easy to set up and it works well. I am using it for a leisure battery in my Land Rover.

### ⭐⭐⭐⭐⭐ Nice piece of kit, good instructions easy to install
*by A***R on 20 August 2019*

Good split charger, easarly keeps my 120ah leisure battery charged.

### ⭐⭐⭐⭐ Good product
*by C***  on 28 June 2021*

Good product arrived on time and in good condition

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**Shop now:** [https://www.desertcart.is/products/744199989-gloaso-125-amps-dual-battery-isolator-vsr-split-charge-relay](https://www.desertcart.is/products/744199989-gloaso-125-amps-dual-battery-isolator-vsr-split-charge-relay)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-23*