Feature: 1. [High Efficiency] The MPPT solar controller is compatible with 12V 24V 36V 48V system voltages and features innovative MPPT (Maximum Power Point Tracking) technology, with a tracking efficiency of up to 99% and peak conversion efficiency of up to 97%. 2. [80A MPPT Solar Controller] Support up to 12 units parallel connection for increased solar system total capacity and overall power output. Perfect for large solar systems, improving reliability and flexibility. 3. [3 Stage Charging] Adopting 3 stage charging modes (batch charging, voltage equalization charging, float charging), effectively optimizing cycle, also having an adaptive boost charging function to avoid charging timeout, extending battery life. 4. [Dual Cooling Heat Dissipation] Made of die cast aluminum, ensuring excellent heat dissipation and reducing power consumption. Featuring intelligent bladeless fan that can achieve efficient cooling, quieter and more effective, suitable for RVs, commercial vehicles, ships, yachts, and solar systems. 5. [Support Battery Types] Compatible with acid, sealed, Gel, AGM, EFB, lithium batteries, and user defined batteries, can be easily switched through the control system. When the battery type parameter is set to lithium battery, there is also a lithium activation function. 6. [Wide Voltage Power Support] Accepts up to 160V solar input power. Recommended maximum PV input power for 12V system is 960W, 1920W for 24V, 2880W for 36V, and 3840W for 48V system. Specification: Item Type: MPPT Solar Charge Controller Material: Aluminum Alloy, PVC Model: POW M80 PRO Rated Charging Current: 80A Size: Approx. 260x180x75mm / 10.24x7.09x2.95in Maximum Open Circuit Voltage of PV Array: 160V Operating Voltage: 12 24 36 48V Charging Technology: MPPT Charging Algorithm: 3 Stage Battery Voltage Range: 9-60V Conversion Efficiency: ≤98% Maximum Power Point Tracking Efficiency: >99% Temperature Range: -35℃~45℃ Humidity Range: ≤95%, Non Condensing Altitude: