Meet the ProMariner ProIsoCharge120 Zero Volt Loss Isolator—a 12V power-management solution for boaters who want reliable charging and simpler wiring. It actively balances and distributes your alternator output to up to three battery banks with zero volt loss, helping engines stay ready and onboard systems powered.
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Zero Volt Loss Isolation: Eliminates the typical 0.6 VDC drop of traditional diode isolators, delivering faster, more efficient charging to all connected battery banks.
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Intelligent Digital Charging: Continuously monitors battery health and dynamically allocates charging where it’s needed most, prioritizing the bank under load while protecting engine start batteries.
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Ignition-Controlled Power Management: Activates only with ignition power, ensuring safe operation and energy efficiency.
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Advanced Regulator Compatibility with Remote Sense: Provides precision control for alternators equipped with an advanced regulator.
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Real-Time Status LEDs: Highly visible indicators show alternator power, charging status, and fault conditions, including high/low output and over-voltage warnings.
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Modular, Easy Installation: Modular design includes terminal boots and a protective snap-on safety cover for quick setup.
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Rugged Marine Protection: Ignition-protected and IP66 waterproof rated for harsh marine environments.
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Multi-Bank Charging: Isolates and charges up to three independent battery banks from a single alternator (model-specific). For dual engine systems, an exclusive 2 alternator input model supports up to 4 banks.
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Shore Power Ready with ProNauticPSeries compatibility: Pairs with shore power to maximize on-the-water charging.
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Space-Saving, Maintenance-Free: Replaces bulky diode isolators and voltage-sensitive relays, simplifying wiring and reducing clutter.
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Compact, Marine-Grade Form Factor: Dimensions 6.15"L x 5.875"W x 3.125"H for flexible installation in tight spaces.
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Technical Specs at a Glance: System Voltage 12V DC; Alternator Input 1; Battery Output 3; Max DC Amps 120.
With ProIsoCharge120, you gain more usable charging across three banks, faster replenishment after long days on the water, and built-in protections that guard your engine start batteries. Its intelligent monitoring and on-demand ignition behavior help extend battery life and reduce on-board downtime, while a rugged, marine-ready design keeps performance steady in challenging conditions. A practical, space-saving upgrade that simplifies wiring and enhances on-the-water reliability.
| System Voltage |
12vDC |
| Alternator Input |
1 |
| Battery output |
3 |
| Dimensions |
6.15"(l) x 5.875"(w) x 3.125"(h) |
| Max DC Amps |
120 |
