ProMariner ProIsoCharge Battery Isolator 120Amp 1-Alt 2-Bat - 12V

Enhance your marine electrical system with the ProIsoCharge120 1½, designed specifically for boating enthusiasts. This intelligent alternator power distribution system ensures optimal battery performance, reduces voltage loss, and provides reliable charging for multiple battery banks, keeping your adventures on the water uninterrupted.

Product Specifications

Model	ProIsoCharge120 1½
Part No.	23121
System Volts DC	12
Max DC Amps	120 Amp
Alternator Input	1
Battery Outputs	2
Size	5.35" (L) x 5.875" (W) x 3.125" (H)
Weight	2 lbs

Advanced Battery Management for Boaters

The ProIsoCharge120 offers digitally controlled alternator output distribution, safeguarding the health of your engine start batteries while efficiently charging up to three additional battery banks from a single alternator. For dual engine setups, our exclusive model supports two alternator inputs and up to four battery banks, making it ideal for versatile marine applications.

Smart Charging Technology

Utilizing zero voltage loss isolation, ProIsoCharge ensures no typical alternator voltage drop, providing fully charged batteries faster than traditional diode-based isolators. Its intelligent software prioritizes charging for battery banks under load, such as house banks or power inverters, by disconnecting fully charged batteries and focusing on those that need power, thus maintaining engine battery health.

Real-Time Monitoring and Indicators

Stay informed with highly visible LED indicators that display alternator power presence and individual battery bank charging statuses. Fault indicators alert you to high or low alternator outputs, over-voltage protection needs, and high voltage conditions across any connected battery banks or additional charging sources like generators or combi systems.

Seamless Integration and Control

• Ignition Controlled: The system activates only when ignition power is on, ensuring efficient battery management.
• Advanced Regulator Ready: Equipped with a remote sense connection for precision control with alternators that have advanced regulators.

Easy Installation and Durability

Designed with a modular layout, the ProIsoCharge120 simplifies installation, saving you time and reducing costs. It includes all necessary terminal stud insulator boots and a protective snap-on safety cover. Built to withstand marine environments, it is ignition protected and rated waterproof to IP66, ensuring long-lasting performance on the water.

Comprehensive Support and Resources

To make the most out of your ProIsoCharge120, access our detailed guides:

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

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.

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.