Mastervolt Alpha Pro III 3-Step Charge Regulator, 12V/24V up to 400A

Maximize your battery life and charging efficiency with the Mastervolt Alpha Pro III, an advanced 3-step charge regulator engineered for both standard and high-performance alternators. Building on over a decade of innovation, this powerful regulator transforms your engine's alternator into a full temperature-controlled, multi-step charger, ensuring rapid and safe power replenishment for your boat or vehicle's service batteries. It actively protects against overcharging while extending battery longevity, making it an essential upgrade for reliable power management.

Key Benefits & Features:

• Optimized Charging Efficiency: Converts any alternator into a sophisticated, temperature-controlled 3-step charger for faster, more efficient battery replenishment.
• Enhanced Battery Protection: Actively monitors battery temperature and voltage to prevent overcharging, significantly extending the lifespan of all battery types, including Lithium-Ion.
• Reduced Engine Load: Balances engine load, leading to fewer RPM variations, decreased engine noise, and lower fuel consumption and emissions.
• Broad Compatibility: Supports standard and high-performance alternators with field currents up to 20 amps, capable of controlling alternators up to 400 A.
• Versatile System Voltage: Compatible with both 12 V and 24 V electrical systems, offering flexibility for various marine and vehicle applications.
• Reliable Tachometer Readings: Features an integrated 'keep alive' function to ensure accurate and consistent tachometer readings.
• Seamless System Integration: MasterBus compatible, simplifying wiring, saving space and weight, and enabling optimal cooperation within Mastervolt power systems.

Upgrade your charging system today for superior performance and peace of mind.

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 go to P65Warnings.ca.gov.