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Same-Day Shipping – Order by 3 PM PST (Mon–Fri)

BIR500 500-Amp Relay and Battery Isolator

Sale Sale
Original price $95.99
Original price $95.99 - Original price $95.99
Original price $95.99
Current price $79.99
$79.99 - $79.99
Current price $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 90 reviews
89%
(80)
11%
(10)
0%
(0)
0%
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0%
(0)
R
Richard Ress
Works

Works great

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
-

-

M
Melissa Brown
Would Use Again!

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