SRNE MA2440N15 MPPT Solar Charge Controller The SRNE MA2440N15 is a high-performance MPPT (Maximum Power Point Tracking) solar charge controller designed for 12 V/24 V battery systems. Ideal for campervans, motorhomes, marine, and off-grid applications, it combines efficient solar energy harvesting, advanced protection, and intelligent load management in one compact unit. With its advanced MPPT technology, the MA2440N15 delivers up to 99% tracking efficiency, ensuring optimal charging performance even in variable sunlight conditions. It supports multiple battery types, including lithium (LiFePO₄), AGM, GEL, and lead-acid, making it versatile for different system setups. The controller features a high PV input voltage of up to 150 V, allowing for flexible solar array configurations, while the 40A charge and load capacity make it suitable for systems up to 1 kW. It also includes comprehensive protection features and communication ports for system monitoring and integration. Key Features MPPT tracking efficiency ≥ 99% for maximum solar harvest Compatible with 12 V / 24 V systems (auto recognition) High PV input voltage up to 150 V 40A charge and load capacity Supports multiple battery types: Lithium, AGM, GEL, Lead-acid Intelligent multi-mode load control Comprehensive protection system for safety and reliability Natural (fan-less) cooling design Communication support: RS-485, TTL, optional CAN (RV-C) A word about SRNE - SRNE is a globally established manufacturer specialising in inverters, solar charge controllers, and energy storage solutions for both residential and mobile applications. Widely recognised as one of the world’s leading producers of solar controllers and RV power solutions, SRNE supplies technology to markets across Europe, Asia, and beyond. Make no mistake — SRNE products are engineered and manufactured to high international standards, combining proven reliability, robust build quality, and smart charging technology to deliver a dependable, high-performance energy solution you can trust. Specifications Specification Details Model MA2440N15 System Voltage 12 V / 24 V (auto recognition) Rated Charging Current 40 A Rated Load Current 40 A Maximum PV Open-Circuit Voltage 150 V DC Maximum PV Input Power 520 W (12 V) / 1 040 W (24 V) MPPT Tracking Efficiency ≥ 99% Conversion Efficiency Up to 98% Quiescent Consumption ≤ 40 mA Operating Temperature −35 °C ~ +65 °C Cooling Method Natural (fan-less) Protection Level IP32 Battery Types Sealed, GEL, Flooded, Lithium, User-defined Load Control Modes Light, Time, Manual, Debug Communication Interface RS-485, TTL, Optional CAN Protections PV over-voltage, PV reverse, short-circuit, overload, battery over/under-voltage, reverse polarity, over-temperature Dimensions 260 × 216 × 83.2 mm Weight Approx. 2.3 kg
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