---
product_id: 10263753
title: "Stinger SGP32 High Current 200-Amp Battery Relay & Isolator for Most Vehicles, Water-Resistant Design for Marine & Powersports, Handles up to 500A Surges, Dual Battery Isolator for Car Audio Systems"
brand: "stinger"
price: "18263 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "Stinger"
url: https://www.desertcart.is/products/10263753-stinger-sgp32-high-current-200-amp-battery-relay-and-isolator
store_origin: IS
region: Iceland
---

# 200A continuous current Water-resistant phenolic plastic 100,000 mechanical cycles durability Stinger SGP32 High Current 200-Amp Battery Relay & Isolator for Most Vehicles, Water-Resistant Design for Marine & Powersports, Handles up to 500A Surges, Dual Battery Isolator for Car Audio Systems

**Brand:** stinger
**Price:** 18263 kr
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay Powered, Stay Ahead — Never Get Stranded Again!

## Quick Answers

- **What is this?** Stinger SGP32 High Current 200-Amp Battery Relay & Isolator for Most Vehicles, Water-Resistant Design for Marine & Powersports, Handles up to 500A Surges, Dual Battery Isolator for Car Audio Systems by stinger
- **How much does it cost?** 18263 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/10263753-stinger-sgp32-high-current-200-amp-battery-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

- • **Dual Battery Mastery:** Seamlessly isolates your secondary battery to prevent primary battery drain and extend battery life.
- • **Built for the Elements:** Water-resistant phenolic plastic housing ensures reliable operation in marine, powersports, and off-road environments.
- • **Endurance You Can Trust:** Engineered for 100,000 mechanical cycles, delivering long-lasting, maintenance-free reliability.
- • **Power On Demand, Always:** Handles up to 200 amps continuous current with 500A surge capacity for peak performance.
- • **Universal 12V Compatibility:** Works flawlessly with any vehicle alternator or charging system—upgrade your ride without limits.

## Overview

The Stinger SGP32 is a high-current 200-amp battery relay and isolator designed for universal 12V vehicle compatibility. Its water-resistant phenolic plastic construction makes it ideal for marine and powersports use, while its ability to handle up to 500A surge current ensures reliable power delivery. Perfect for dual battery setups, it prevents primary battery drain and extends battery life with a robust 100,000 mechanical cycle lifespan.

## Description

200 AMP Battery Isolator and Relay

Review: Amazing - Worked great
Review: Great isolator for adding a second Yukon Battery - I have had continuous problems with my 2004 Yukon battery dying, as the vehicle sits more than it is used and seems to have a significant power draw from the electronics and aftermarket radio install. GMC and Chevrolet offered a second battery as an option, and the tray is available aftermarket online. I purchased the Stinger SGP32 200 AMP Battery Relay Isolator and Relay, and took it and my backup second battery to Broadway Auto Electric in Lemon Grove for professional installation. Now my Yukon starts very strongly every time, and I don't have to worry about getting stuck at the most inopportune times. The Stinger SGP32 200 AMP Battery Relay Isolator and Relay keeps the second battery out of the phantom draw when the car sits, and uses both batteries to start the car when the ignition switch is turned on. I could have wired it and installed it myself, and if you deal with auto electronics and are familiar with such things this would be a very easy install. I would recommend the Stinger SGP32 200 AMP Battery Relay Isolator and Relay for similar applications.

## 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 200A continuous current and up to 500A 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 | B001HBYXVS |
| Best Sellers Rank | #27,305 in Automotive ( See Top 100 in Automotive ) #21 in Automotive Replacement Accessory Power Relays |
| Brand | STINGER |
| Brand Name | STINGER |
| Coil Voltage | 12 volts |
| Connector Type | Screw |
| Contact Current Rating | 200 A |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Current Rating | 200 A |
| Customer Reviews | 4.6 out of 5 stars 1,563 Reviews |
| Global Trade Identification Number | 00609098796019, 00609098797788 |
| Included Components | Stinger |
| Item Type Name | SGP32 |
| Item Weight | 1.4 pounds |
| Manufacturer | Stinger |
| Maximum Switching Current | 1 A |
| Maximum Switching Voltage | 12 volts |
| Minimum Switching Voltage | 12 volts |
| Model | SGP32 |
| Mounting Type | Chassis Mount |
| Operation Mode | Automatic |
| Part Number | SGP32 |
| UPC | 609098797788 609098796019 |
| Unit Count | 1 Count |
| Warranty Description | 1 year |
| Wattage | 12 watts |

## Product Details

- **Connector Type:** Screw
- **Contact Material:** Copper
- **Contact Type:** Normally Open
- **Current Rating:** 200 Amps
- **Mounting Type:** Chassis Mount

## Images

![Stinger SGP32 High Current 200-Amp Battery Relay & Isolator for Most Vehicles, Water-Resistant Design for Marine & Powersports, Handles up to 500A Surges, Dual Battery Isolator for Car Audio Systems - Image 1](https://m.media-amazon.com/images/I/71Avf6Y7YoL.jpg)

## Available Options

This product comes in different **Customer Package Type, Style** options.

## Questions & Answers

**Q: Do I install this before or after a 100 amp bus prewired in my vehicle?**
A: It depends which battery you want to power the bus, and how the bus is wired. If the bus is connected in between both batteries, I would put the isolator before the bus to only drain the accessory battery when the vehicle is off. Once again, depends on how the bus is wired though.

**Q: Is it better to leave the 2 battery connected all the time or its better to disconnect the auxiliary battery if i choose to use a switch**
A: The purpose of the Stinger SGP32 200 AMP Relay is to provide an electronic "switch" that can connect two batteries (or battery systems) at the control of a 1A, 12V signal. In typical use, the relay's signal input is attached to your vehicle's Accessory On, Ignition On or Engine Run signal. In this way, your two batteries are automatically connected by the relay when your vehicle is on and disconnected when your vehicle is off. You could add 1 or more additional manual switches to provide a manual override to the automatic relay.

**Q: What gauge wire is recommended?**
A: You can search google for "Wire Gauge Amps Chart" and that will provide more detailed information on what size wire gauge is required for your specific installation.

But I would definitely recommend using 1/0awg Oxygen-Free Copper (OFC) power wire if your components will be drawing anywhere near 200 amps.

**Q: I have a 210amp alternator will this size work for me or would in need to go bigger? Am i also capable of also using this as a relay without 2 batterys**
A: 1. Your relay capacity should match your alternator, not your load. So you theoretically need a minimum of 210 amp relay. 
2. Yes. It is basically just a solenoid that isolates one terminal from the other until it is activated.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing
*by R***Y on August 8, 2026*

Worked great

### ⭐⭐⭐⭐⭐ Great isolator for adding a second Yukon Battery
*by J***D on August 23, 2023*

I have had continuous problems with my 2004 Yukon battery dying, as the vehicle sits more than it is used and seems to have a significant power draw from the electronics and aftermarket radio install. GMC and Chevrolet offered a second battery as an option, and the tray is available aftermarket online. I purchased the Stinger SGP32 200 AMP Battery Relay Isolator and Relay, and took it and my backup second battery to Broadway Auto Electric in Lemon Grove for professional installation. Now my Yukon starts very strongly every time, and I don't have to worry about getting stuck at the most inopportune times. The Stinger SGP32 200 AMP Battery Relay Isolator and Relay keeps the second battery out of the phantom draw when the car sits, and uses both batteries to start the car when the ignition switch is turned on. I could have wired it and installed it myself, and if you deal with auto electronics and are familiar with such things this would be a very easy install. I would recommend the Stinger SGP32 200 AMP Battery Relay Isolator and Relay for similar applications.

### ⭐⭐⭐⭐⭐ Nice!
*by T***H on March 13, 2014*

I actually haven't gotten around to installing this yet, but I know alot about this item and it is very high quality. The purpose of this item is to make it so only one battery is depleted, and one is reserved for starting, in dual battery set-ups. This is very common in cars when people play their music, or what have you, off of one battery, while the other battery will remain fully charged for starting. Install is pretty simple. The two smaller posts require a TRUE 12v ignition source (12v even when starting the vehicle) and a ground. The larger two posts are for your positive "battery to battery" connections. My attempt at a typed diagram would look something like this: .......................................o--------------- true ignition 12v source+ Battery1+---------------- O O -------------------Battery2+ ...............Ground(-)-------o (Sorry please ignore the dots before the top and bottom of the diagram.) *I would recommend using 0ga-4ga wire for the battery to isolator connections, and 16ga-18ga for the ignition source and ground to isolator connections. This is because lower gauge (thicker) wire has less resistance per length (measured in ohms) than higher gauge (thinner) wire. When you try to send a high amount of current through a wire that is too thin, you will generate alot of heat in that wire, which can melt wires, cause short circuits, start fires, and be potentially very dangerous. The instructions are pretty straightforward. I would recommend this to anyone running a dual battery setup regardless of if they plan to play alot of music or not. This is because batteries have different voltage potentials, which over time can drain each other trying to stabilize (but that's a very simple explanation).

## Frequently Bought Together

- Stinger SGP32 200 AMP Battery Relay Isolator and Relay
- 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)
- 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

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-08-15*