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Limitless Lithium LL-IR500A

500A Battery Isolator and Relay

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• 500-amp Relay and Battery Isolator
• High current isolation relay designed for adding a secondary battery
• Prevents primary battery discharge when the vehicle engine is off
• Maximum Contact Rating: 500 amps
• Mechanical Life Cycle: 100000

Learn more about the llir500a
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$79.00

 with warranty
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Description


Limitless Lithium brand icon

Authorized dealer

High-Current Dual 1/0 Input Distribution

The Limitless Lithium 500A Isolation Relay (LL-IR500A) offers a definitive solution for managing multi-battery setups, allowing you to bridge your starting battery and high-performance lithium bank with industrial-grade reliability. This heavy-duty solenoid handles a massive 500-amp continuous current, ensuring that your auxiliary power remains isolated when the vehicle is off to prevent drainage while automatically linking them for efficient charging once the alternator is active. Precision-engineered for high-output car audio, marine, and RV applications, this relay provides a professional-grade safeguard against electrical bottlenecks and accidental battery failure. By integrating this robust isolation hardware, you secure a surgical level of control over your vehicle's power distribution, protecting your investment in high-fidelity equipment and ensuring your engine always has the cranking power it needs.

Product Details:

  • 500-amp Relay and Battery Isolator
  • High current isolation relay designed for adding a secondary battery
  • Prevents primary battery discharge when the vehicle engine is off
  • Allows all batteries in the system to charge when the engine is running
  • Constructed from water-resistant black phenolic plastic for durability
  • Specifically engineered for high-efficiency power management
  • Ideal for use with car audio, marine and RV setups
  • Maximum Contact Rating: 500 amps
  • Mechanical Life Cycle: 100000
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

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Specifications & Details


Battery Isolator Features
Compatible Amperage
500 amps
Isolator Type
Relay (Solenoid)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

LL-IR500A

Weight:

31.60lbs

Internal SKU:

llir500a

Internal Product ID:

230234

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.