---
product_id: 81192070
title: "Install Bay Relay 500 Amp Each- IB500"
brand: "install bay"
price: "$190.27"
currency: USD
in_stock: true
reviews_count: 11
url: https://www.desertcart.us/products/81192070-install-bay-relay-500-amp-each-ib500
store_origin: US
region: United States of America
---

# 500 Amps Continuous Multi Battery Support Weatherproof Design Install Bay Relay 500 Amp Each- IB500

**Brand:** install bay
**Price:** $190.27
**Availability:** ✅ In Stock

## Summary

> 🔌 Power Your Passion with the Install Bay Relay!

## Quick Answers

- **What is this?** Install Bay Relay 500 Amp Each- IB500 by install bay
- **How much does it cost?** $190.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/81192070-install-bay-relay-500-amp-each-ib500)

## Best For

- install bay enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable weatherproof construction protects against the elements, making it perfect for any environment.
- • **Maximize Battery Life:** Designed to extend battery longevity, so you can focus on what matters most.
- • **Seamless Installation:** Easy to install, making it a must-have for any serious automotive enthusiast.
- • **Smart Battery Management:** Ideal for multi-battery systems, giving you control over which battery is in use.
- • **Power Up Your Performance:** Handles a whopping 500 Amps continuously, ensuring your systems run smoothly.

## Overview

The Install Bay Relay 500 Amp (IB500) is engineered to handle continuous loads of 500 amps, featuring a robust weatherproof construction that ensures durability in any condition. It's essential for multi-battery systems, allowing for efficient battery management and extended battery life.

## Description

Install Bay Relay 500 Amp Each- IB500

## Features

- Handles 500 Amps Continuous
- Durable Weatherproof Construction
- A Must For Multi Battery Systems
- Allows For Longer Battery Life And Control Over Which Battery Is Being Used

## Images

![Install Bay Relay 500 Amp Each- IB500 - Image 1](https://m.media-amazon.com/images/I/61rbei5HvvL.jpg)

## Available Options

This product comes in different **Product Packaging** options.

## Customer Reviews

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Would like larger posts with greater spacing.
  

*by C***E on Reviewed in the United States 🇺🇸 on December 21, 2021*

I would like larger posts further apart, but I was able to install this into my 77 K20 plow truck pretty easily.It is wired up to engage when truck is running so it is not an extra battery for starting, but in event I need it as such I can move a wire and pop in that fuse on battery, will just pop it in after review, and it will be engaged full time.Since I have a Lithium reserve battery I could not simply keep it live with my lead acid and not have issues in the cold or actually at any time, would need 2 of the same battery identical battery to not have such a device inline keeping them apart.  I had matching batteries prior, but this gives me much more reserve plowing, the plow and controls are electric and not hydraulic, other than lift, on an old Western plow and I noticed after a few hours of plowing in extreme cold my wipers and blower for heater would stall or slow down, and radio would cut out n lights dim before I upgraded the stock wiring to 1/0 and added this new battery and isolation circuit.  Now I can plow all night long, have a 220A alternator, and everything works as it does in daytime as it should.As to how long this will provide me service, will update if have any issues as I always do... So far so good.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works
  

*by R***O on Reviewed in the United States 🇺🇸 on June 8, 2022*

Haven`t put it to a substantialy long test yet, but so far it operates as it should, will see after I get a heavy load through it.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Don't forget Flyback protection
  

*by A***R on Reviewed in the United States 🇺🇸 on September 22, 2015*

Using them with 300A fuse for 12V winch on/off.  No issues so far, but only gave 4 stars due to complete lack of instruction or spec sheets. NOTE that they use large coils and will throw big (several hundred to 1000V) reverse voltage spikes on the switch circuit when de-energised.  This is enough to wreak havoc on solid state components including switch LEDs. Strongly suggest adding flyback protection with diode(s), resistor, cap,etc. Lots of how-to available if you search "flyback" or "relay suppression".

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**Shop now:** [https://www.desertcart.us/products/81192070-install-bay-relay-500-amp-each-ib500](https://www.desertcart.us/products/81192070-install-bay-relay-500-amp-each-ib500)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-22*