Features 1、MAIN PURPOSE: Capable of real time detection of the power generated by solar panels and tracking the highest voltage and current value (V1), enabling the system to charge the battery at maximum power output. 2、WIDE APPLICATION: This controller is applied in the solar off grid PV system to coordinate the work of solar panel, battery, and load, and the core control component of the off grid photovoltaic system. 3、LCD DISPLAY: Using LCD to display operating status, control parameters, etc., users can view various parameters through buttons and modify the parameters to adapt to different systems. 4、GOOD PROTECTION: Equipped with input power limiting protection, photovoltaic input terminal voltage too high, reverse connection, overload, over power, over temperature, TVS arrester protection. 5、DUAL FAN COOLING: The solar controller adopts dual fan cooling system, with current limiting charging mode. When the charging current exceeds the rated current, it automatically reduces the charging power. 6、HIGH COMPATIBILITY: Supports colloidal, sealing, open and lithium batteries, etc., and can be used in household photovoltaic power generation systems, comm base stations, highway monitoring systems, etc. Specification Item Type: Solar Controller No Load Loss: ≤0.4W USB Output: 5V 3A Conversion Efficiency: ≤98% MPPT Tracking Efficiency: >99% Temperature Compensation Coefficient: -2mv/℃/2V (default value) Working Temperature: -10-65℃ Protection Level: IP21 Electromagnetic Compatibility: Conform to EN61000, EN55022, EN55024 Altitude: ≤3000 meters Product Features: 1. Using advanced dual or multi peak tracking technology, when the battery panel is shaded or partially damaged, multiple peaks will appear on the IV curve, and the controller can still accurately track the maximum power point. 2. The built in maximum power tracking algorithm can significantly improve the energy utilization efficiency of photovoltaic systems, which is about 25% higher than traditional PWM charging efficiency. 3. The combination of multiple tracking algorithms can accurately track the best working point of the IV curve in a very short time. 4. The MPPT tracking efficiency can reach up to 99.9%. 5. Adopting advanced digital power supply technology, the energy conversion efficiency of the circuit can reach up to 98%. 6. Support charging programs for different types of battery, such as gel battery, sealed battery, open cell battery, and lithium battery. 7. Equipped with current limiting charging mode, when the battery board power is too high and the charging current is greater than the rated current, the controller automatically reduces the charging power to operate at the rated charging current. It can support instantaneous high current startup of capacitive loads. 9. With a fault LCD display, it is convenient for users to determine system faults. 10. Built in over temperature protection mechanism, when the temperature exceeds the device setting value, the charging current linearly decreases with the temperature, thereby reducing the temperature rise of the controller and avoiding high temperature damage to the controller. 11. Equipped with temperature compensation function, it can automatically adjust charging and discharging parameters to improve battery service life. 12. Complete electronic protection functions. 13. Adopting a metal shell for better heat dissipation performance. 14. Lithium battery 0V charging function. Package List 1 x Solar Controller