Expert Service 1-877-289-7664 [Hours]

Fall Blow Out Dot Sale

The Install Bay IB500

500 Amp Battery Isolator and Relay

Out of Stock - Backorder
|

List price $69.99

$49.99

with warranty

You Save: $20.00 (28.58%)

Add an Extended Warranty

Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

Low Price Guarantee

Seen it for less? Click here

365-Day Coverage

Warranty assistance for a year

Get FAST answers from customers ASK a Question See questions answers

  • 500 amp Battery Isolator and Relay
  • Great for isolating a second battery making it dedicated to the stereo system
  • Does not create a voltage drop to the second battery like conventional isolators
  • Prevents primary battery discharge
  • Maximum current transfer
  • Extends battery life
  • Compatible with universal 12V Applications
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Battery Isolator Features

Compatible Amperage
This is the total number of amps that the battery isolator is designed to continually receive.
500 amps
Width
The width of the item from left to right (side-to-side) measured in inches.
3-3/8"
Height
The height of the item, measured from top to bottom, in inches.
3"
Depth
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
3-3/4"
Isolator Type
This specifies whether the isolator is a switch/relay type isolator, or a diode isolator. Relay isolators will maintain a higher charging voltage, while diode types will offer true isolation and improved reliability.
Relay (Solenoid)

Specials with this Item

Promotions
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.9
Value
5.0
Features
4.9
Design
4.9
Usability
4.9
Woofers74

Sedro Woolley, WA

Overall
Durability
Value
Features
Design
Usability
Does Exactly What I Needed It To Do

June 2, 2011

My experience is professional. This 500 amp continuous duty relay does not have the voltage drop that a solid state battery isolator has and does a much better job of charging auxiliary batteries through. This one had the highest amperage rating for the price. It clicks on with a very heavy and solid "thunk" like you would expect from a heavy duty solenoid. You will need to use an AND gate with this relay, or any other such device so that it isn't energized when you have your ignition switch in the start position or the accessories position. I chose this one for its high capacity to insure a much longer contact life. I will definitely be buying more of these for future RV and high power sound system needs and would most certainly recommend it to a friend or relative.

2 of 2 found this helpful

Help our customers find the most helpful reviews

PCNut

Layton UT

Overall
Durability
Value
Features
Design
Usability
Install Bay IB500

October 15, 2014

Good Product worked great best price online I could find for a relay with 500 amp capacity. Would recommend

0 of 0 found this helpful

Help our customers find the most helpful reviews

J

NM

Overall
Durability
Value
Features
Design
Usability
works great

August 30, 2014

Easy install great black shiny color and like all other reviews u can hear a good click when turned on. Makes me feel its of high quality and it obviously is because it works great gave had NO problems since the 5 months its been installed theres no point in buying a 200 when the 500 is like $5 more? Overall great product and website. Definitely recommend both.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Fraz

Canada

Overall
Durability
Value
Features
Design
Usability
works like it should!

June 13, 2014

Keeps my 2000w system running on stinger deep cycles from dipping into the van 's power supply, a nice heavy 'thunk' is heard when the isolator turns on. Bang for your buck and a simple solution for headlight dimming. Only con could be the lack of installation instructions and terminal indication symbols for the first timer.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Clarence

Hyattsville, MD

Overall
Durability
Value
Features
Design
Usability
Great for use with extra battery

January 16, 2014

This worked perfectly for my setup with an extra battery! I use this with a switch when I have my car turned off so I don't drain my main car battery!

0 of 0 found this helpful

Help our customers find the most helpful reviews

Carlos

Springfield, MA

Overall
Durability
Value
Features
Design
Usability
excellent product

January 11, 2014

I purchased this product about your gall still work fine what's good about it even before I purchase my baby alternator but it looks good still work fine so I left it in the cart still using it in today recommend it to anybody to buy

0 of 0 found this helpful

Help our customers find the most helpful reviews

mar'key

hawthorne ca

Overall
Durability
Value
Features
Design
Usability
super battery relay

October 9, 2013

I purchased one that wasn't as good as this one from another distributor and it caused a lot of problems when it shorted. it took me a while to find out. I recommended that when installing this item you put in the best to avoid problems in the future and make sure the person that works on your car knows what he is doing because you'll regret it. also the price was great and free shipping can't beat that

0 of 0 found this helpful

Help our customers find the most helpful reviews

Boss

Washington, DC

Overall
Durability
Value
Features
Design
Usability
A++

September 18, 2013

Works great. You can't even hear it activate. I use it with a relatively low power system but I love to bump my music with the engine off so I installed one of these to make sure I don't kill my main battery.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Walter

Omaha, NE

Overall
Durability
Value
Features
Design
Usability
Keep Ya Batts From Fighting!

July 29, 2013

this 500 amp isolator keep all my batteries from killing each other...don't listen to so-called pros that tell you not to use a isolator! its a must for daily driver systems with this three batteries a 6 farad cap big 3 and a stock 120 amp alternator I never drop below 14 volts

0 of 0 found this helpful

Help our customers find the most helpful reviews

Michael

Arlington, TX

Overall
Durability
Value
Features
Design
Usability
solid product

May 28, 2013

1400 watts of sound system with 250 amp alt with optima yellow top and kinetic batt in trunk. this handles both with ease. really a must for higher powered electronics. Heavy duty unit. Great price for large power handling.

0 of 0 found this helpful

Help our customers find the most helpful reviews

spillz

atl,Ga

Overall
Durability
Value
Features
Design
Usability
Great Buy!!

March 31, 2013

I Installed this product in my car 6 months ago and it works great my batterys get more than enough juice to charge them and fast...this is a great add on to multiple battery banks for any application that serves it..I love it...

0 of 0 found this helpful

Help our customers find the most helpful reviews

Tyler

Prior Lake, MN

Overall
Durability
Value
Features
Design
Usability
Isolator

March 14, 2013

Nice and durable. Feels solid. Haven't actually got it to charge my second battery yet but it does isolate them. I think it's because my car's alternator isn't strong enough. Has good connections and the ring terminals I used fit nice and snug. Had some trouble installing it myself due to a slight flaw in it's design (couldn't put bolts as close as I wanted them to be due to the cylinder being a bit too wide). Otherwise no problems.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Minor in Bassology

Baton Rouge, LA

Overall
Durability
Value
Features
Design
Usability
Great Buy

February 28, 2013

Very sturdy, and easy installation. Have been using this for about 6 months without a relay and i have abused it and still have not had any problems!

0 of 0 found this helpful

Help our customers find the most helpful reviews

DARKSTAR

NEWELL

Overall
Durability
Value
Features
Design
Usability
very solid:

February 28, 2013

I installed one of these on my 1997 k1500 last year and i have had. On trouble at all. I installed a backup battery and have had the main battery go dead but with this ib500 it kicked the backup battery in and the truck started right up. These relays DO NOT FAIL!

0 of 0 found this helpful

Help our customers find the most helpful reviews

Barry

manteca, CA

Overall
Durability
Value
Features
Design
Usability
isolater/relay

September 23, 2012

The isolater relay has worked flawlessly for me since i have put it in my pathfinder and it was very easy to install.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Rick

Queens, NY

Overall
Durability
Value
Features
Design
Usability
Best priced high quality

May 9, 2012

After 2 years of using this it still works! Best relay isolator I ever used.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Tim

Tucson, AZ

Overall
Durability
Value
Features
Design
Usability
Good product

September 25, 2011

I've only had it for a couple days, but it works great so for. I tested it and lets the volts go through like I need to charge the other battery. When I turn the car on you hear a heavy click, witch I have to say I like to hear. For the price and the amp of the relay it's a good buy. I bought this one, because I want to upgrade the alternator on my car. I wish Sonic sold that too, but maybe some day.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Jake

Fishers, IN

Overall
Durability
Value
Features
Design
Usability
Great product

August 21, 2011

Cheap and does what it needs to... Isolates the batteries.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Jacob

Fishers, IN

Overall
Durability
Value
Features
Design
Usability
Good isolator

August 16, 2011

Does exactly what it should

0 of 0 found this helpful

Help our customers find the most helpful reviews

Items we think you might want
BIR500 thumbnail
NVX BIR500

• 500 Amp Battery Isolator
• 500 Amps at 12V Continuous
• 700 Amps Surge
• Switching Power: 10 - 16 VDC

Your Price $49.99

XHC600 thumbnail
NVX XHC600

• Sealed Absorbed Glass Mat (AGM) Design
• Perfect for 600W Car Audio Stereo Systems
• Ultra Low ESR
• 850 Amps
• 22 Amp Hours
• 100% Sealed and Maintenance Free

Your Price $69.99

Browse 2 questions and 6 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
haVE TWO BATTERIES
Victor M on Sep 6, 2014
a must for duel batteries
john s on Sep 4, 2014
What gauge wire should be used for ignition and ground?
A shopper on Aug 6, 2014
Best Answer: Due to the short duration of power to crank typically less than five seconds, I used a 4 awg wire to the starter, the rest of the system uses 1/0 runs for power/ground. If the starting battery is moved to the opposing end of the car as the engine follow the AWG current capacity as a function of length to determine this based on the current required to crank the engine.
Reply · Report · Che M on Aug 6, 2014
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

IB500

UPC

086429191901

Weight

1.75lbs

Internal SKU

ib500

Internal Product ID

28365

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: The Install Bay IB500