MPPT Solar Charge Controller 30A / 60A / 80A (Auto 12V 24V 36V 48V) Overview This MPPT solar charge controller is available in three maximum current ratings: 30A, 60A, and 80A. It automatically detects system voltage among 12V, 24V, 36V, and 48V and supports a maximum PV opencircuit voltage of 100V. Designed for residential and offgrid applications, the controller combines advanced MPPT tracking with dual control modes for flexible system management. Key features and specifications Maximum charge current options: 30A, 60A, 80A. Rated output current options: 20A, 35A, 50A (modeldependent). System voltage: automatic detection for 12V, 24V, 36V, 48V. Max PV opencircuit voltage: 100V. Low selfconsumption: 20mA. USB output: two ports at 5V/2A each for accessory charging. Dual control mode for flexible charger and load management. Advanced MPPT algorithm to maximize energy harvest across changing irradiance and panel voltages. Why this controller Higher energy yield: The MPPT algorithm continuously optimizes PV operating point to increase conversion efficiency compared to nonMPPT controllers. Flexible installation: Automatic multivoltage support and a 100V PV input limit allow use with a variety of panel configurations and battery banks. Low standby draw: 20mA selfconsumption minimizes parasitic drain on batteries for longterm offgrid reliability. Multiple power options: Select the maximum current rating that matches your array and battery capacity to avoid oversizing or undersizing. Convenient charging ports: Two USB outputs provide 5V/2A each for phones, tablets, and small devices without affecting system control. Practical applications Offgrid cabin or tiny house: Manage battery charging from a roof array while powering LED lighting, small appliances, and charging devices via the USB ports. Recreational vehicle and marine systems: Compact solution to charge onboard battery banks and run DC loads with automatic voltage detection and low standby current. Small residential or backup systems: Integrate with battery backup setups to improve conversion efficiency and support household DC loads or inverters. Installation and operation notes Choose the controller current rating that matches your PV array and battery system. Ensure the array opencircuit voltage does not exceed 100V. Use the dual control mode to configure charging and load behavior based on your system needs. Verify wiring and fuse protection per local electrical practices before energizing the system. This MPPT charge controller provides a practical, efficient solution for a range of small to medium offgrid and backup solar installations, offering selectable current capacities, broad voltage compatibility, and low selfconsumption.