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15% Off Sitewide | Spring Into Savings
15% Off Sitewide | Spring Into Savings
BIR500 500-Amp Relay and Battery Isolator

BIR500 500-Amp Relay and Battery Isolator

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$97.13
$97.13 - $97.13
$97.13
$79.99
$67.99
$79.99 - $79.99
$79.99
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Product Details:

  • Mobile Audio Relay and Battery Isolator
  • Great for isolating a second batter making it dedicated to the stereo system
  • Lengthens battery life by preventing your two batteries from charging and draining each other
  • 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
  • 1-year Warranty from the Original Purchase Date

Customer Reviews

Based on 89 reviews
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100.0
M
M. Higginbotham
Nice product. A little loud.

It has a pretty loud click when you turn the key over. But it’s better than the oem 30 amp unit. I am using my aux battery to power my 1600 watt sound system p=Vi or 1600=14.4i or 1600/14.4=111amps

P
Paul Fensterer

Much better quality over another popular brand that was more expensive. Very pleased with the product.

L
Lance
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M
Melissa Brown
Would Use Again!

Quick shipping, easy to use web site. Will use again.

S
Scott
Get it! Your system needs it!

I wanted to first off say Sonicelectronix is great to work with. The shipment of this 500A relay/isolator was quick. It looks just as it does in the pics. I love how they set me up with a personal account with them for future wants and needs.

As far as this relay/isolator it is a must to keep your starter battery from being drained. Even if you are using an XS Power D3400 AGM, it still needs isolated from the sound system battery. It is easy to install. Thanks guys! Scott

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