MPPT Charge Controller 45A – SCCM4548-II

Description The Felicity Solar SCCM4548-II is a 45A MPPT charge controller that bridges the gap between entry-level systems and high-power setups. Part of the Series II family, it offers the same high-end features as the 60A and 80A models—such as high PV input voltage and Lithium battery support—but is optimized for smaller, high-efficiency battery banks. Compact Power: The Mid-Range Specialist The SCCM4548-II is perfect for users who want a professional-grade MPPT but don’t need the massive amperage of larger units. It is specifically popular for systems using two to four large solar panels (e.g., 400W–550W panels). Series II Intelligence: Features an upgraded chipset that tracks the solar maximum power point faster and with more precision than the original Series I models. Smart Monitoring: Includes an integrated intelligent slot compatible with MODBUS/RS485, allowing you to link the controller to your computer or mobile app for remote monitoring. Key Features Full Voltage Versatility: Auto-detects 12V, 24V, and 48V battery configurations. High-Voltage PV Input: With a 145V DC limit, you can string multiple panels in series, which reduces current loss and saves money on thick cabling. Lithium-Ready: Specifically designed to charge LiFePO4 batteries safely, with a “wake-up” function for lithium batteries that have entered protective sleep mode. Optimized Charging: Uses a 3-stage charging logic (Bulk, Absorption, Float) to ensure batteries reach 100% capacity without gassing or overheating. Technical Specifications Feature Specification Model SCCM4548-II Rated Charge Current 45A System Voltage 12V / 24V / 48V (Auto-Sensing) Max PV Input Voltage (VOC) 145V DC Max PV Input Power 625W (12V) / 1250W (24V) / 2500W (48V) MPPT Efficiency 99.5% Peak Conversion Efficiency 98% Protection Class IP21 (Indoor/Vented) Dimensions 277 x 185 x 100 mm Comprehensive Protection Suite Safety is a priority in the Series II design. The unit includes: Short Circuit Protection: Protects against wiring accidents. Battery Overcharge/Discharge: Keeps battery voltage within safe health limits. Reverse Polarity: Protects the internal circuitry if  /- wires are swapped. Thermal Management: Automatic power derating if internal temperatures exceed 55 degree C. Installation Tip: For a 45A current, you should use a minimum of 10mm² (8 AWG) copper cable. On a 48V system, this controller can comfortably handle four 550W panels (wired in 2 strings of 2).