MPPT Solar Charge Controller — 20A, 30A, 40A models for 12V and 24V systems efficiency MPPT solar charge controller with LCD display, optional remote header, and standard communication interface. Max PV input voltage 100VDC. Designed to maximize energy harvest from PV arrays and provide safe, reliable battery charging for offgrid and autonomous power systems. Key benefits Maximizes energy yield: Advanced MPPT algorithm tracks the array maximum power point quickly under changing conditions, with tracking efficiency up to 99.9% and peak conversion efficiency up to 97%. Simple setup and operation: Onekey battery type configuration lets you select common battery chemistries quickly and begin charging immediately. Broad compatibility: Works with 12V and 24V battery systems and supports flooded leadacid, gelsealed leadacid, and lithium batteries through integrated charging presets. Reliable protection: Multiple hardware and software protections guard against overheating, reverse polarity, short circuit, over discharge, output short, load overcurrent, and excessive charging current. Clear monitoring: Builtin backlit LCD shows charging current, generated energy, temperature, battery voltage, and error codes in real time; remote header and communication interface allow system expansion and remote monitoring. Core features Available charging current ratings: 20A, 30A, 40A. System voltage support: 12V and 24V. Maximum PV open circuit voltage: 100VDC. Multistage charging algorithm to optimize battery life and capacity retention through bulk, absorption, and float stages. Adaptive charging logic with presets for common battery types to simplify configuration. Onekey battery type selection for fast commissioning. Builtin intelligent 24hour temperature monitoring to adjust charging and prevent hazardous conditions. Silent operation suitable for indoor or noisesensitive installations. Optional remote header and standard communication interface for data logging and external control. Protection and safety Overheat protection with automatic charging stop when . Reverse polarity protection to prevent damage on incorrect wiring. Output short circuit and load overcurrent protection. Over discharge prevention and maximum charging current limit. Realtime error reporting on LCD for quick diagnostics. Applications and use scenarios Residential offgrid power system: Use the controller to manage PV charging for a home battery bank in a 12V or 24V setup, maintaining battery health with multistage charging and adaptive presets. Remote infrastructure: Power communication base stations or traffic signal controllers with reliable MPPT tracking and robust protection to ensure continuous operation. Outdoor lighting systems: Control solar street lamps, courtyard lights, or garden lighting where silent operation, automatic temperature compensation, and clear status monitoring are important. What makes it stand out tracking precision and conversion efficiency to extract more usable energy from the solar array. Quick, reliable battery configuration and multistage charging tailored for common battery types. Comprehensive protections and temperature monitoring for safer longterm operation. Clear local display plus options for remote monitoring and communication for flexible integration. Technical summary Models: 20A, 30A, 40A. System voltage: 12V, 24V. Max PV input: 100VDC. Display: Backlit LCD with realtime monitoring parameters. Supported battery types: Flooded leadacid, gelsealed leadacid, lithium (presets included). This MPPT solar charge controller is suitable wherever efficient solar charging, safe battery management, and reliable monitoring are required.