---
product_id: 413264186
title: "Stinger SGP35 500-AMP Relay and Isolator"
brand: "stinger"
price: "HK$2373"
currency: HKD
in_stock: true
reviews_count: 5
category: "Stinger"
url: https://www.desertcart.hk/products/413264186-stinger-sgp35-500-amp-relay-and-isolator
store_origin: HK
region: Hong Kong
---

# 500A Power Battery Saver Universal Fit Stinger SGP35 500-AMP Relay and Isolator

**Brand:** stinger
**Price:** HK$2373
**Availability:** ✅ In Stock

## Summary

> ⚡ Unleash the Power Within!

## Quick Answers

- **What is this?** Stinger SGP35 500-AMP Relay and Isolator by stinger
- **How much does it cost?** HK$2373 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/413264186-stinger-sgp35-500-amp-relay-and-isolator)

## 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

- • **Compact Design:** Lightweight and space-efficient at just 748g.
- • **Power on Demand:** Experience instant energy with a 500 AMP high current relay.
- • **Automatic Operation:** Enjoy hassle-free functionality with automatic mode.
- • **Battery Life Extender:** Maximize your battery's lifespan and performance.
- • **Universal Compatibility:** Perfect for all 12-volt applications, making it versatile.

## Overview

The Stinger SGP35 500-AMP Relay and Isolator is a high-performance device designed to prevent primary battery discharge while providing power on demand. With a robust 500 AMP current rating and universal compatibility for 12-volt applications, this relay not only extends battery life but also operates automatically for seamless energy management. Weighing just 748 grams and featuring a compact design, it's the perfect solution for any automotive or marine setup.

## Description

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: Excelente calidad - Excelente relay para conectar 2 pilas
Review: Sal - Installed work perfectly 👌

## Features

- 𝗨𝗻𝗶𝘃𝗲𝗿𝘀𝗮𝗹 𝟭𝟮𝗩 𝗖𝗼𝗺𝗽𝗮𝘁𝗶𝗯𝗶𝗹𝗶𝘁𝘆: Works with any type of vehicle alternator or charging system.
- 𝗪𝗮𝘁𝗲𝗿-𝗥𝗲𝘀𝗶𝘀𝘁𝗮𝗻𝘁 𝗖𝗼𝗻𝘀𝘁𝗿𝘂𝗰𝘁𝗶𝗼𝗻: Designed with phenolic plastic to protect against moisture damage in marine, powersports, or off-road applications.
- 𝗠𝗮𝘅𝗶𝗺𝘂𝗺 𝗖𝘂𝗿𝗿𝗲𝗻𝘁 𝗧𝗿𝗮𝗻𝘀𝗳𝗲𝗿: Access power on demand up to 500A continuous current and up to 900A surges.
- 𝗜𝗱𝗲𝗮𝗹 𝗳𝗼𝗿 𝗦𝗲𝗰𝗼𝗻𝗱𝗮𝗿𝘆 𝗕𝗮𝘁𝘁𝗲𝗿𝘆 𝗜𝘀𝗼𝗹𝗮𝘁𝗶𝗼𝗻: Prevents primary battery discharge, providing a reliable and efficient way to power your car stereo system or other electrical accessories.
- 𝗘𝘅𝘁𝗲𝗻𝗱𝘀 𝗕𝗮𝘁𝘁𝗲𝗿𝘆 𝗟𝗶𝗳𝗲: Features a 100,000 mechanical cycle life.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004WDPZEW |
| Best Sellers Rank | #477,068 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #3,133 in Ignitions |
| Brand | STINGER |
| Brand Name | STINGER |
| Coil Voltage | 12 Volts |
| Connector Type | Screw |
| Contact Current Rating | 500 Amps |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Country of Origin | USA |
| Current Rating | 500 Amps |
| Customer Reviews | 4.6 out of 5 stars 633 Reviews |
| Global Trade Identification Number | 00609098800365 |
| Item Weight | 748 g |
| Manufacturer | Stinger |
| Minimum Switching Voltage | 12 Volts (DC) |
| Model Number | SGP35 |
| Mounting Type | Socket Mount |
| Number of Terminals | 2 |
| Operation Mode | Automatic |
| Part Number | SGP35 |
| UPC | 609098797771 609098800365 |
| Unit Count | 1.0 Count |
| Wattage | 6000 Watts |

## Product Details

- **Connector Type:** Screw
- **Contact Type:** Normally Open
- **Current Rating:** 500 Amps
- **Mounting Type:** Socket Mount
- **Brand:** STINGER

## Images

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excelente calidad
*by B***Z on 28 August 2025*

Excelente relay para conectar 2 pilas

### ⭐⭐⭐⭐⭐ Sal
*by S***S on 17 May 2026*

Installed work perfectly 👌

### ⭐⭐⭐⭐⭐ Five Stars
*by C***N on 21 August 2017*

good service and good product

## 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.hk/products/413264186-stinger-sgp35-500-amp-relay-and-isolator](https://www.desertcart.hk/products/413264186-stinger-sgp35-500-amp-relay-and-isolator)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-06-07*