BRL500 - Recoil 500a Battery Isolator with Terminals

The BRL500 is a 500-amp continuous-duty battery isolator designed for dual-battery and high-demand car audio systems. It prevents the secondary battery bank from drawing down the main starting battery when the engine is off, keeping your primary battery protected during extended accessory use. Unlike conventional diode-based isolators, it delivers full voltage to the secondary battery without drop or loss.

• 500A continuous / 700A surge rating — handles high-demand electrical loads without compromise
• No voltage drop — eliminates the typical 0.6–0.7V loss associated with standard diode isolators
• Dual-battery protection — prevents battery banks from cross-draining each other
• Main battery preservation — isolates the starting battery when the engine is off and accessories are running
• Waterproof construction — rated for harsh weather and under-hood environments
• Includes terminals — ready for direct integration into your power distribution setup