Pro Mariner 23121 ProIsoCharge 2-Bank Battery Isolator

The Pro Mariner ProIsoCharge 23121 is a digitally controlled, 2-bank battery isolator that ensures efficient alternator output distribution while protecting your engine start batteries. Unlike traditional diode-based isolators that can lose up to 0.6 volts DC, this advanced isolator maintains optimal charging voltage for superior battery health and performance.

Key Features:

• Digital control technology eliminates voltage drop associated with conventional diode isolators
• 2-bank configuration allows charging of two separate battery banks simultaneously
• Protects engine start battery by preventing discharge from house batteries
• Maintains full alternator voltage output for faster, more efficient charging
• Compact, marine-grade construction for reliable performance in harsh environments
• Easy installation with clearly marked terminals

Ideal for boats, RVs, and commercial vehicles with multiple battery systems, the ProIsoCharge ensures each battery bank receives optimal charging current while preventing cross-discharge between banks. This smart isolator maximizes battery life and eliminates the inefficiencies of outdated isolation technology.