ProMariner ProIsoCharge Battery Isolator 120Amp 1-Alt 3-Bat - 12V

Optimize your boat's electrical system with the ProIsoCharge120 1-3, a cutting-edge alternator power distribution system designed specifically for marine and boating applications. Experience intelligent battery management, enhanced charging efficiency, and reliable power distribution to multiple battery banks, ensuring your marine adventures are powered smoothly and efficiently.

Product Specifications

Model	ProIsoCharge120 1-3
Part Number	23124
System Voltage DC	12V
Maximum DC Amperage	120 Amp
Alternator Inputs	1
Battery Outputs	3
Dimensions	6.15" (L) x 5.875" (W) x 3.125" (H)
Weight	3 lbs

Advanced Alternator Power Distribution

The ProIsoCharge120 1-3 intelligently manages and distributes your engine’s alternator output to multiple battery banks. This ensures optimal charging without voltage loss, protecting the health of your engine start batteries while efficiently powering auxiliary batteries for onboard electronics, navigation systems, and more.

Key Features

Digital Performance Isolation

The ProIsoCharge120 incorporates ProMar Digital Performance technology, offering zero voltage loss isolation and active battery status monitoring. This digital control ensures your alternator’s full output is effectively utilized, enhancing overall charging efficiency.

Smart Charging Prioritization

With intelligent software control, ProIsoCharge120 prioritizes charging to battery banks that are under load, such as your house bank or power inverter bank. Fully charged batteries are automatically taken offline, ensuring the engine’s start battery remains healthy and ready.

Real-Time LED Indicators

Stay informed with highly visible LED status indicators that display alternator power presence and battery bank charging status. Fault indicators alert you to issues like high or low alternator output, over-voltage protection, and high voltage conditions in any connected battery banks.

Ignition Controlled Operation

The system activates only when ignition power is on, ensuring that battery management is synchronized with your boat’s engine operation. This feature helps in conserving power and preventing unnecessary battery drain.

Advanced Regulator Compatibility

Equipped with an advanced regulator remote sense connection, the ProIsoCharge120 allows for precise alternator algorithm control. This ensures compatibility with alternators that feature advanced regulators for optimal performance.

Easy Installation

Designed with a modular approach, the ProIsoCharge120 offers straightforward installation. It comes complete with all terminal stud insulator boots and a protective snap-on safety cover, simplifying the setup process and reducing installation time and cost.

Built-In Safety Features

• Ignition protection
• Waterproof rating of IP66
• Five-year warranty

Seamless Integration with ProNauticP Series

When installed alongside the ProNauticP Series, boat owners can fully leverage shore power and on-water charging capabilities. This integration ensures that your batteries remain charged whether you’re docked or cruising, providing consistent power availability for all your marine electrical needs.

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.

Quick Guide (PDF)
Owner's Manual (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.