ProMariner ProIsoCharge120 Zero Volt Loss Isolator is a digital, marine-grade battery management system that protects engine start batteries while intelligently distributing the full output of your alternator to multiple battery banks. Designed for reliability on the water, this 12V isolator delivers true zero volt loss, faster charging, and smarter power flow so you can spend more time enjoying your boat.
Key benefits
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Intelligent, priority charging automatically directs current to the battery bank under load (house or inverter bank) while preserving the health of engine start batteries.
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Zero volt loss isolation eliminates the typical voltage drop found in traditional diode-based isolators, delivering faster, more complete charge to each bank.
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Real-time LED status indicators clearly show alternator power, charging status, and fault conditions (high/low output, over-voltage, or high voltage conditions on any bank).
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Ignition Controlled Distributed On Demand activates only with ignition power, providing safe, automatic battery management when you’re on the water.
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Advanced regulator compatibility remote sense connection enables precision control for alternators equipped with an advanced regulator.
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Easy installation Modular design with comprehensive hardware included—terminal stud insulators boots and a protective snap-on safety cover.
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Rugged, marine-ready build IP66-rated construction protects electronics from water, dust, and spray.
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Versatile bank support isolates and charges up to 3 independent battery banks from a single alternator (model specific); dual-engine setups with 2 alternator inputs can manage up to 4 banks.
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Space and time savings replaces bulky diode isolators and voltage-sensitive relays/solenoids, simplifying wiring and installation.
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Enhanced boating uptime pairs with ProNauticPSeries shore power solutions for round-the-clock charging on and off the water.
What makes it work
ProIsoCharge120 digitally distributes the output of your engine’s alternator while safeguarding the health of your engine batteries. It charges multiple independent banks simultaneously, prioritizes the bank under load, and keeps start batteries ready for instant cranking—every time you turn the key.
Specifications
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System Voltage: 12V DC
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Alternator Input: 1
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Battery Output: 2
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Dimensions: 5.35" (L) x 5.875" (W) x 3.125" (H)
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Max DC Amps: 120
| System Voltage |
12vDC |
| Alternator Input |
1 |
| Battery output |
2 |
| Dimensions |
5.35"(l) x 5.875"(w) x 3.125"(h) |
| Max DC Amps |
120 |
