ProMariner ProIso Charge 250 0 Voltage Loss Isolator 12v 1 Alternator 2 Batteries

Meet the ProMariner ProIsoCharge250 Zero Volt Loss Isolator for 12V boats, a digital performance solution that protects engine starting batteries while intelligently distributing the alternator’s full output to multiple battery banks. Model: 23123. Experience active battery status, engine battery health priority, and faster, lossless charging across your system.

Smart, Reliable Battery Management

• Intelligent isolation and charging software prioritizes the battery bank under load (house/inverter) by taking fully charged batteries offline and directing discharge/charge where it’s needed most, while safeguarding engine start batteries.
• Real-time LED status indicators keep you informed with highly visible signals for alternator power, battery charging status, and fault conditions (high/low output, over-voltage, or high voltage on any connected bank).
• Ignition Controlled Distributed On Demand activates only with ignition power on, ensuring no parasitic draw when your boat is off.
• Advance Regulator Ready remote sense connection provides precision control for alternators with advanced regulators.
• Easy installation modular design with included terminal stud insulator boots and a protective snap-on safety cover for quick setup.
• IP66-rated safety built-in protection against water and debris, ideal for marine environments.
• Multibank charging isolates and charges up to 3 independent battery banks from a single alternator (model-specific). For dual-engine boats, an exclusive 2-alternator input model supports up to 4 banks.
• Space-saving, diode-free design eliminates traditional diode isolators and relays, reducing complexity and enabling true zero volt loss—faster charge times and more usable power.
• Voltage stability eliminates typical alternator voltage loss of up to 0.6 VDC, boosting charging efficiency across all banks.
• Shore power compatibility when paired with ProNauticPSeries, you can enjoy full shore power and on-the-water charging for extended time on the water.

Specifications
System Voltage: 12V DC • Max DC Amps: 250 • Alternator Input: 1 • Battery Output: 2 • Dimensions: 6.95" (L) x 5.875" (W) x 3.125" (H)