Pro Mariner 12133 Battery Isolator 2 Alternator 3 Battery 130 Amp

The Pro Mariner 12133 is a heavy-duty battery isolator designed to manage charging across multiple battery banks from dual alternator sources. This professional-grade isolator allows two alternators to charge three separate battery banks simultaneously while preventing parasitic discharge between batteries when the engine is off.

Key Features:

• 130 amp continuous duty rating for high-output alternator systems
• 2 alternator inputs and 3 battery bank outputs for complex electrical configurations
• Gold-plated terminals for superior conductivity and corrosion resistance
• Enhanced efficiency design minimizes voltage drop during charging
• Solid-state construction with no moving parts for reliable operation
• Suitable for marine, RV, commercial vehicle, and emergency vehicle applications

Battery isolators are essential for vehicles and vessels with multiple battery systems, ensuring that house batteries, starting batteries, and auxiliary batteries remain properly charged while maintaining electrical isolation. The Pro Mariner 12133's dual alternator capability makes it ideal for larger boats, motorhomes, and commercial applications where redundant charging sources provide added reliability and faster battery recovery times.