{"product_id":"mastervolt-regulateur-charge-alpha-pro-iii-electricite","title":"Alpha Pro III Charge Controller","description":"\u003cp\u003e\n    The \u003cstrong\u003eAlpha Pro III charge regulator\u003c\/strong\u003e from Mastervolt (reference 45513000) is a sophisticated charge management solution designed to optimize the performance of standard and high-performance alternators in marine and vehicle systems. Based on ten years of experience and evolution, this regulator provides fast and safe charging of service batteries from the propulsion engine while protecting the entire system. It features a modernized style, increased power, and improved ease of use compared to previous Alpha Pro generations.\n\u003c\/p\u003e\n\n\u003ch3\u003eCharge performance optimization and system protection\u003c\/h3\u003e\n\u003cp\u003e\n    The Alpha Pro III converts any alternator into an advanced 3-stage charger (Bulk, Absorption, Float) with thermal control, compatible with lead-acid (flooded, gel, AGM) and lithium-ion batteries. Unlike standard alternator regulators, which are often undersized for charging service batteries, the Alpha Pro III ensures optimal charging, preventing overheating and overcharging to extend battery life. It can handle induced currents up to 20 A, allowing it to control high-power alternators, including models from 200 A to 400 A, and even up to 600 A for certain tested Delstar alternators.\n\u003c\/p\u003e\n\n\u003ch3\u003eAdvanced features and MasterBus integration\u003c\/h3\u003e\n\u003cp\u003e\n    This advanced regulator continuously measures battery temperature and voltage for temperature-compensated charging, with an adjustment of -30 mV\/°C (-17 mV\/°F) and voltage drop compensation up to 3 V in DC cables. The absorption time is adjustable from 2 minutes to 12 hours, with a default setting of 4 hours. An intelligent \"keep alive\" function ensures reliable tachometer readings by sending engine RPM values over the MasterBus network, alongside alternator status and charge level. The Alpha Pro III is compatible with 12 V and 24 V systems and fully integrates with Mastervolt’s MasterBus, simplifying wiring and optimizing cooperation with other Mastervolt equipment. It comes with 6-meter battery temperature sensors and dedicated connections for Mastervolt and Bosch alternators (via adapter 45510500). Its compact dimensions (90 x 109 x 30 mm) and 0.4 kg weight, combined with fanless cooling, make installation in demanding marine environments straightforward.","brand":"Mastervolt","offers":[{"title":"Default Title","offer_id":53723889500500,"sku":"45513000","price":292.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/main-square_a7fe6e8f-62d7-4643-85f9-51bce6ba5517.jpg?v=1778021342","url":"https:\/\/skysat.fr\/en-gb\/products\/mastervolt-alpha-pro-iii-charge-regulator","provider":"Skysat","version":"1.0","type":"link"}