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NVX BIR500

500 Amp Relay Isolator (BIR500)

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List price $149.99

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$54.99

with warranty

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Order within 21 hrs 22 mins to ship 7/29

Arrives by Friday, July 31 to zip 20147

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Isolate with Confidence

The NXV BIR500 Isolator is the perfect solution when adding a secondary battery to your audio system. It allows the second battery to be fully dedicated to the sound system and does not create a voltage drop like common isolators tend to do. The isloator will draw less than 1 amp when your vehicle is powered on. All of this will ensure that your battery will be isolated with confidence!

Product Features:

  • Mobile Audio Relay and Battery Isolator
  • Great for isolating a second batter making it dedicated to the stereo system
  • Does not create a voltage drop to the second battery like conventional isolators
  • 500 Amps at 12V Continuous Power Handling
  • 700 Amps Surge Power Handling
  • Switching Power: 10 - 16 VDC
  • Draws Less Than 1 Amp When On
  • 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
Surge Amperage
This is the total number of amps that the battery isolator is designed to receive on a surge of power.
700 amps
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

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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
90%
4 Star
10%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.9
Value
4.9
Features
4.9
Design
4.7
Usability
4.9
Abdulrahman

Springfield Gardens, NY

Overall
Durability
Value
Features
Design
Usability
very good

February 2, 2014

you wont find a cheaper battery isolator that handles 500 amp

great product thanks sonic

29 of 51 found this helpful

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Cool Tuff

Oakley, Ca.

Overall
Durability
Value
Features
Design
Usability
Great equipment for the price

October 27, 2014

Had my profesional installler put in in line between my batteries (which are in parallel), works like it should with no probloms. Can't beat the price for a 500 amp isolator!

28 of 50 found this helpful

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Flaco sound

Woodbridge nj

Overall
Durability
Value
Features
Design
Usability
Nvx bir500

September 17, 2013

This prod is to keep your batteries sepret from one to the other is the best way to keep your batteries all way charge and sepret at same time verry good prod

24 of 42 found this helpful

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thomas

Sacramento, California

Overall
Durability
Value
Features
Design
Usability
worth the money

May 5, 2014

Im totally satisfied with my purchase. This is a good and durable product. Like always, sonic electronix processed and shipped my order fast.

30 of 55 found this helpful

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Z

saint paul, MN

Overall
Durability
Value
Features
Design
Usability
does what its supposed to

May 8, 2014

Very nice quality piece. Gets the job done. Very simple to install. Don't overtighten the lock Nuts though.

32 of 61 found this helpful

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Cody

Whitewood, SD

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
good buy

June 19, 2015

Exactly as described. Easy to install. Havent gotten the whole system up and running yet so we dont know if it works yet or does its job.

5 of 8 found this helpful

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Bob

Garland, TX

Overall
Durability
Value
Features
Design
Usability
Perfect for use with After Market Sound System Battery Power

March 1, 2015

Met my expectations.Perfect use for allowing the Second Battery to work with my Aftermarket Sound System without draining my Primary Battery.

14 of 28 found this helpful

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sonrich64

Lawrenceville Ga

Overall
Durability
Value
Features
Design
Usability
Unbeatable deal

March 17, 2014

Great product at a great price. Shipping is reasonable and fast.

27 of 54 found this helpful

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Imran

Bangladesh

Overall
Durability
Value
Features
Design
Usability
Excellent product

May 8, 2014

Works as advertised. Easy to install. No problems so far.

28 of 57 found this helpful

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Jon

Rockwell, NC

Overall
Durability
Value
Features
Design
Usability
Very happy.

July 13, 2014

Product works just as advertised and suits my purposes perfectly. My second battery drives a heavy duty wench, fog lights, and stereo system and the NVX BIR500 has been keeping it well charged. It was easy and quick to install. The only thing I wish it came with would be rubber caps for the posts. I accidentally tapped them more than once, causing sparks (that's why the 3 under 'look/design'), Before I wrapped them in electrical tape. Other than that I've very happy with it.

28 of 64 found this helpful

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Browse 5 questions and 32 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
Highly Recommended for use with a Second Battery I'm Installing in my Suburban for use with my High-End After Market Sound System.
Bob C on Jan 28, 2015
I have a 5000W system and have a separate battery bank for the system.
Raphi G on Sep 2, 2014
high amperage, trust the brand
martin g on Oct 18, 2014
It was recommended
Keith T on Aug 26, 2014
dose it help out when having a 3000 watt amp hook't up dose it act like a small alternator I don't know much of this product so if you know help full hint's please let me know???
revis on Aug 11, 2014
Best Answer: This is pretty much a big Relay switch. Mainly to be used in between 2 or more batteries. Install your power wire and fuse it as close to your main battery, run the power wire to this Amp Relay, install another power wire to this relay, fuse it next to your second battery and hook to second battery. Follow the instructions on wiring.......with this being said, technically you really do not need an isolator unless you plan on running your audio equipment or anything else after market with the engine off.....with the engine on, this relay allows a charge from your alternator to both batteries, whereas when you turn your engine off, this isolator "disconnects" the second battery, thus allowing you to use your second batter as long as it can go, without draining your main battery, allowing to still start your car. If you're going to SPL application, don't bother with this as you'll have more resistance, if you're going for more subtle, SQ or car show application, it won't hurt anything and also allows more security, just make sure you ground everything properly. But if you are running a 3000w amp, (assuming that's all) technically don't worry about this isolator unless you play music with engine off, to make sure this particular "500 amp" isolator is enough, basically figure out how many amps you'll be needing from your second battery as well as what you alternator can handle. I bought this, but I ended up never installing it or using it at all, mainly b/c I was planning on an SPL application, but now I'm re-doing my entire set up, so I'll probably use it....

I hope at least some of this information helps....Keep in mind, when installing anything electrical, especially batteries, amps, and alternators, you should ALWAYS be safer by adding extra security, even if someone says it's overkill, I would rather replace a bunch of fuses rather than my entire vehicle and set up. Do your research on this, look at review and youtube reviews, they do help
Reply · Report · James P on Aug 13, 2014
· Add Answer · I Have This Question Too (2)
Do i have to hook the 12v switch to the ignition so it turns on only when in run position or can i hook it up to the accessory wire so it turns on at every position, like how my amps for my stereo are? I just dont want main battery to die when listening to stereo. And what gauge wire would be recommended for the 12v switch?
Steven S on Mar 30, 2015
Best Answer: The point here is to separate your "stereo battery" from your "main battery" when the engine is not running (alternator not spinning). The reason here is that batteries left connected together will continuously attempt to equalize, thus degrading the life of the batteries. Connecting the batteries when the engine is not running will not be good for them. However, as your stereo amplifiers are supposed to be connected to your "stereo battery", listening to your system with the engine off will not pose a drain by your amps on the "main battery".

In order to figure proper wire size:
1. Measure resistance of coil in the isolator (ohms, across smaller terminals).
2. Measure running voltage of car.
3. Apply OHMS Law to figure current requirement (volts/ohms = current).
4. Google "wire gauge chart" to determine proper gauge wire for your current and wire length requirements.

I know it may seem like a lot, but it REALLY isn't. Just take a deep breath and follow each step.
Reply · Report · JULI H on Mar 30, 2015
· Add Answer · I Have This Question Too (0)
i am runing 20000 watts off my amps, will this help or will i need a bigger one?
A shopper on Aug 26, 2014
Best Answer: The manufacturer's specs state that this device is rated to handle 500 Amps constant and 700 Amps Surge (both at 12V). This means it can handle 6000 watts constant and a 8400 watt surge (volts x amps = watts). If you are seriously running 20,000 watts rms, you may wish to consider other options, because at 12v you would be pulling 1,667 amps, and at 14.4v you would be pulling 1389 amps. I assume that instead of power cables you are using solid buss bars?
Reply · Report · JULI H on Aug 27, 2014
· Add Answer · I Have This Question Too (0)
i have a duralast gold as primary battery and i am trying to add a kinetic hc600 in the back of my 08 accord stock alt 0g wire, for amp i have a RE Audio ztx-5000.1 for an orion hcca 122 would this isolator help me conect both batteries to power my system? can this isolator be placed in the back with my second battery (hc600) or is require to be at the front?
mayitodmngz m on Jan 8, 2015
Best Answer: I think it would be easier to place it in the front and have it accessible since this isolator has a switch and tends not to last as long as a regular isolator. But i got this one and am extremely happy with it. It would go perfectly with ur set up. I have similar set up. Very easy to install. Just make sure u set up ALL your amps to the rear battery so that when the car is off, the isolator will seperate the batteries so ucan listen to your system when the car is off withoit draining your front battery. Then when your car is on, the isolator will switch and then flow thw alternator charge to your rear battery. Good luck!
Reply · Report · zedrik j on Jan 8, 2015
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

BIR500

UPC

818060010767

Weight

2.00lbs

Internal SKU

bir500

Internal Product ID

46583

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: NVX BIR500