---
product_id: 64091429
title: "SGP35 500-AMP Relay and Isolator, Black"
brand: "stinger"
price: "€ 259.46"
currency: EUR
in_stock: true
reviews_count: 5
category: "Stinger"
url: https://www.desertcart.fi/products/64091429-sgp35-500-amp-relay-and-isolator-black
store_origin: FI
region: Finland
---

# 500 AMP high current capacity Water-resistant phenolic plastic Prevents primary battery drain SGP35 500-AMP Relay and Isolator, Black

**Brand:** stinger
**Price:** € 259.46
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay charged, stay ahead — power your ride like a pro!

## Quick Answers

- **What is this?** SGP35 500-AMP Relay and Isolator, Black by stinger
- **How much does it cost?** € 259.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/64091429-sgp35-500-amp-relay-and-isolator-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

- • **Built to Last:** Engineered for 100,000 mechanical cycles ensuring long-term durability
- • **Battery Guardian:** Automatically isolates secondary batteries to prevent unwanted drain
- • **Effortless Operation:** Activates on ignition for power on demand without manual intervention
- • **Powerhouse Performance:** Handles up to 500 amps for ultimate reliability under heavy loads
- • **Universal Compatibility:** Seamlessly integrates with all 12V alternators and charging systems

## Overview

The Stinger SGP35 is a robust 500-amp relay and isolator designed to protect your primary battery by automatically separating secondary batteries when the ignition is off. Built with water-resistant phenolic plastic and copper contacts, it guarantees up to 100,000 mechanical cycles of reliable performance. Compatible with all 12V systems, it ensures efficient power management and extends battery life for high-demand automotive setups.

## Description

Made of Water resistant black phenolic plastic, has a 100,000 mechanical cycle life and 500 amp contact rating. Stinger's high current relays are the most efficient and reliable way to add secondary batteries to your system. This new for 2011 item has the highest current handling capability to date. Simply connect these relays to operate when the ignition is turned on. The battery system will remain separate while the ignition is off, preventing system drain. Compatible with all types of alternators and charging systems.

Review: Stinger - Excellent piece of equipment does the job just as it says on the tin?
Review: Stinger 500 amp isolator relay - Excellent high end car audio quality product 500 amp relays well packaged and arrived on time great seller good communication and fast postage postage very happy many thanks

## Features

- 500 AMP High Current Relay/Isolator
- Prevents primary battery discharge
- Power on demand
- Extends battery life
- Universal 12 volt applications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004WDPZEW |
| Best Sellers Rank | 256,652 in Automotive ( See Top 100 in Automotive ) 1,062 in Car Relays |
| Brand | STINGER |
| Coil Voltage | 12 Volts (DC) |
| Connector Type | Screw |
| Connector type | Screw |
| Contact Current Rating | 500 Amps |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Contact material | Copper |
| Contact type | Normally Open |
| Current Rating | 500 Amps |
| Current rating | 500 Amps |
| Customer Reviews | 4.6 out of 5 stars 611 Reviews |
| Global Trade Identification Number | 00609098800365 |
| Item Weight | 1.65 Pounds |
| Manufacturer | Stinger |
| Minimum Switching Voltage | 12 Volts (DC) |
| Mounting Type | Socket Mount |
| Mounting type | Socket Mount |
| Number of Terminals | 2 |
| Operation Mode | Automatic |
| Specification Met | UL |
| UPC | 609098797771 609098800365 |
| Unit Count | 1.0 Count |
| Wattage | 6000 watts |

## Product Details

- **Connector type:** Screw
- **Contact material:** Copper
- **Contact type:** Normally Open
- **Current rating:** 5E+2 Amps
- **Mounting type:** Plug In Mount

## Images

![SGP35 500-AMP Relay and Isolator, Black - Image 1](https://m.media-amazon.com/images/I/61jbjoqbpVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Stinger
*by G***R on 17 April 2025*

Excellent piece of equipment does the job just as it says on the tin?

### ⭐⭐⭐⭐⭐ Stinger 500 amp isolator relay
*by A***R on 21 January 2025*

Excellent high end car audio quality product 500 amp relays well packaged and arrived on time great seller good communication and fast postage postage very happy many thanks

### ⭐⭐⭐⭐⭐ Stringer battery isolator 500A
*by B***H on 11 November 2023*

Fast shiipping , good quality

## Frequently Bought Together

- Stinger SGP35 500-AMP Relay and Isolator , Black
- 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
- BOJACK 0/2/4 Gauge ANL Fuse Holder and 200 Amp ANL Fuses for 0 2 4 8 Gauge AWG Fuse Block, Fuse Box, Automotive Fuse Holder 200A (Pack of 2)

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**Shop now:** [https://www.desertcart.fi/products/64091429-sgp35-500-amp-relay-and-isolator-black](https://www.desertcart.fi/products/64091429-sgp35-500-amp-relay-and-isolator-black)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-08*