The PowerMax PM4-75 (240V Input) is a heavy-duty power converter and intelligent battery charger designed to convert 240V AC shore or generator power into clean, reliable 12V DC power. Delivering a massive 75 Amps of continuous output, it is the ultimate upgrade or replacement mainboard for RVs, motorhomes, boats, and off-grid solar setups.
4-Stage Smart Charging: Automatically cycles through Bulk, Absorption, Float, and Maintenance modes to safely charge and prolong the lifespan of your 12V batteries.
Universal Battery Support: Optimized to charge and maintain multiple battery profiles, including Lithium (LiFePO4), AGM, Sealed, and Flooded Lead-Acid batteries.
Fixed Voltage Mode: Can be switched from smart charging to a fixed DC power supply mode, adjustable from 13.0 Vdc up to 16.5 Vdc—perfect for high-demand 12V equipment testing or car audio setups.
240V AC Input: Specifically configured for 240V mains power systems, making it ideal for international power hookups, specialty generators, or specific domestic utility layouts.
Comprehensive Protection: Built-in safeguards including Reverse Polarity, Overload, Short Circuit, and Thermal protection.
Quiet Ventilation: Features a demand-sensing, proportional cooling fan that only speeds up under heavy electrical loads to keep operation as quiet as possible.