Meet the ProMariner ProIsoCharge250 Zero Volt Loss Isolator for 12V systems — a digital, intelligent charging solution that protects your engine start battery while smartly distributing the full output of a single alternator to up to three independent battery banks. Model: 23126.
Designed for modern boats, ProIsoCharge250 delivers true zero volt loss isolation, eliminating the efficiency drain of traditional diode-based isolators. Enjoy faster charge times, more efficient power management, and more time on the water.
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Digital Performance — all-digital design delivers active battery status and automatic engine battery health priority while distributing the full alternator output.
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Intelligent Isolation & Charging Software Control — prioritizes charging to a loaded battery bank (house or inverter) by taking fully charged batteries offline and prioritizing discharged banks, while preserving engine battery health.
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Real Time LED Status Indicators — highly visible LEDs show alternator power and battery charging status; fault LEDs cover high/low alternator output, over-voltage protection, and other conditions affecting connected banks.
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Ignition Controlled Distributed On Demand — battery bank management activates only with ignition power on, protecting starting batteries when the boat is not running.
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Advance Regulator Ready — remote sense connection provides precision control for alternators equipped with an advanced regulator.
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Easy Installation — modular design for straightforward setup, including all terminal stud insulator boots and a protective snap-on safety cover.
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Built-in Safety — ignition-protected and IP66 waterproof rugged construction keeps charging operation secure in harsh marine environments.
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Multi-Bank Charging — isolates and charges up to 3 independent battery banks from a single alternator (model-specific); dual-engine boats can use an exclusive 2-input model to support up to 4 banks.
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Space & Time Saver — eliminates traditional diode-based isolators and voltage-sensitive relays/solenoids, reducing space and wiring complexity while preventing voltage loss.
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Shore Power Ready — designed to pair with ProNauticPSeries shore power systems for comprehensive on-the-water charging.
Specifications
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System Voltage: 12vDC
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Alternator Input: 1
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Battery Output: 3
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Dimensions: 8.875" (L) x 5.875" (W) x 3.125" (H)
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Max DC Amps: 250
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Model: 23126
| System Voltage |
12vDC |
| Alternator Input |
1 |
| Battery output |
3 |
| Dimensions |
8.875"(l) x 5.875"(w) x 3.125"(h) |
| Max DC Amps |
250 |
