---
product_id: 259564230
title: "Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK"
brand: "stinger"
price: "€ 144.59"
currency: EUR
in_stock: true
reviews_count: 1
url: https://www.desertcart.com.cy/products/259564230-stinger-sgp38-80-amp-battery-isolator-and-relay-black
store_origin: CY
region: Cyprus
---

# 80A constant Universal 12V 150A peak Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK

**Brand:** stinger
**Price:** € 144.59
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your journey with confidence!

## Quick Answers

- **What is this?** Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK by stinger
- **How much does it cost?** € 144.59 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/259564230-stinger-sgp38-80-amp-battery-isolator-and-relay-black)

## Best For

- stinger enthusiasts

## Why This Product

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

## Key Features

- • **Power Up Your Ride:** Experience a robust 80 AMP constant current for peak performance.
- • **Lightweight Champion:** Weighing in at just 0.28 g, it’s easy to install without adding bulk.
- • **Battery Life Extender:** Designed to prevent primary battery discharge, prolonging your battery's lifespan.
- • **Universal Compatibility:** Perfect for all your 12V applications, making it a versatile choice.
- • **Stay Charged, Stay Ready:** 150 AMP peak ensures maximum current transfer when you need it most.

## Overview

The STINGERSGP38 80-AMP Battery Isolator and Relay is engineered to prevent primary battery discharge while providing a constant 80A and peak 150A current transfer. Its universal compatibility with 12V applications makes it an essential component for any vehicle, ensuring longevity and reliability without the added weight.

## Description

Ideal for battery isolation, Stinger's high current relays are the most reliable and efficient way to add secondary batteries to your system. Compatible with all types of alternators and charging systems, simply connect these relays to operate when the ignition is turned on. The battery systems remain separate while the ignition is off, preventing system drain. Water resistant black phenolic plastic, 100,000 mechanical cycle life.

Review: 80 Amp rating - Don't trust the ratings - Unless their claim is about the combined load of both batteries to be at 80 amps total, I wouldn't trust the ratings at all. I have a two 80 ah dual agm setup and the relay gets considerably warm during operation and my relay terminals literally melted, inspite of the connections being screwed tight. I'd advice against it, if you are even planning basic dual battery setup.

## Features

- 80 AMP Battery Isolator and Relay
- Prevents primary battery discharge.80A constant 150A peak
- Maximum current transfer
- Extends battery life
- Universal 12V Applications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 21.59 x 14.73 x 6.1 cm; 0.28 g |
| Item model number | SGP38 |
| Other display features | Wireless |
| Color | BLACK |
| Whats in the box | Stinger |
| Item Weight | 0.28 g |

## Product Details

- **Contact material:** Silver
- **Contact type:** Normally Open
- **Current rating:** 80 Amps
- **Mounting type:** Limited mount
- **Brand:** STINGER

## Images

![Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK - Image 1](https://m.media-amazon.com/images/I/51P4ak4MFvL.jpg)
![Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK - Image 2](https://m.media-amazon.com/images/I/71Wec3EAWpL.jpg)
![Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK - Image 3](https://m.media-amazon.com/images/I/61xzK18IWcL.jpg)
![Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK - Image 4](https://m.media-amazon.com/images/I/61LpQ+rC2+L.jpg)

## Questions & Answers

**Q: Will this isolator be able to handle a mech man 350amp ho alternator feeding two rockford fosgate 1,000 monoblock amps at 1 ohm with two kinetic batte**
A: 85amps to each 1000watt amplifier is plenty..... you want 14.4 volts steady.... i would start with a capacitor before this?? Is someone messing with me??? i am the only one that gets this... besides the man asking the question???? why is it wired for a full OHM? It should be fine at a half OHM!!

**Q: Will this work on my fishing boat? I have two batteries..**
A: Most boats will have a battery selector switch.  #1 battery, #2 battery, Both batteries.  If you do not have a selector switch this can be used to charge both batteries while the engine runs, but with the engine off you can draw down one (stereo, trolling motor, etc.) while still not affecting your ability to start with the other battery.  How the batteries are wired (in parallel) will determine how your system operates.  To use this relay you need to split the system, for example 1 house battery, 1 starting battery.  The manual switch will still give you more control over your system, if you remember to use it.

**Q: Isolator becomes hot after a about 30 minutes of activation.**
A: There is no question mark here so there is no answer...only questions.  The device is a relay, the 12-volt coil is the only constant heat producer and, if energized by 12-volts, should not generate much heat.  The capacity, 80-amps, is a maximum for the relay contacts and connections, exceeding it or maintaining it constantly might generate some heat.  If the device is mounted near the engine, or in the sun, it could be warm from the environment.  What is "hot."  Are all the connections tight?  Is the load near the maximum 80-amps?  Is the coil seeing more than 12-volts?  Are the wires involved in the 80-amp circuit gauged large enough to handle the current?  And, you may have a faulty device.

**Q: Will this allow the alternator to charge main and auxilary battery while car is on ??**
A: Yes.  Properly installed the device separates the main battery from the auxiliary battery when the engine is off.  When on, both batteries are charged.

## Customer Reviews

### ⭐ 80 Amp rating - Don't trust the ratings
*by L***E on 6 June 2024*

Unless their claim is about the combined load of both batteries to be at 80 amps total, I wouldn't trust the ratings at all. I have a two 80 ah dual agm setup and the relay gets considerably warm during operation and my relay terminals literally melted, inspite of the connections being screwed tight. I'd advice against it, if you are even planning basic dual battery setup.

## Frequently Bought Together

- Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK
- TRUE® UTV-SBI-CM UTV Dual Battery Connect & Monitor Kit
- Mighty Max Battery ML26-12 12V 26AH Replacement Battery for UB12260-ER

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**Shop now:** [https://www.desertcart.com.cy/products/259564230-stinger-sgp38-80-amp-battery-isolator-and-relay-black](https://www.desertcart.com.cy/products/259564230-stinger-sgp38-80-amp-battery-isolator-and-relay-black)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-04-23*