This solar charging controller provides efficient, reliable charging for electric vehicle batteries using an MPPT loading method and active cooling. It is designed to increase conversion efficiency, allow simultaneous charging from solar and a main charger, and extend component life through improved thermal management. Key benefits conversion efficiency: Achieves over 90 percent conversion efficiency using a efficiency MPPT loading method, reducing energy loss during solar to battery conversion. Energy savings and flexibility: Enables direct solar charging of an electric vehicle battery, reducing dependence on grid power when sunlight is available. Simultaneous charging support: Allows charging via the main charger and solar input at the same time without interference, so both sources can work together to maintain or recharge the battery. Improved durability and reliability: thermal dissipation and fan cooling lower operating temperature, which helps maintain conversion performance and supports a longer device lifespan. How it solves common problems Reduces wasted solar energy with an MPPT algorithm that tracks and maximizes power extraction from solar arrays. Removes the need to choose between solar or grid charging by supporting concurrent charging inputs, simplifying energy management. Prevents overheating and performance degradation under load with active cooling, which stabilizes conversion efficiency over time. Functions and compatibility Function: MPPT solar to battery conversion and management; concurrent input handling for solar and main charger. Compatibility: Designed to work with standard solar arrays and typical electric vehicle charging systems that accept combined solar and main charger inputs. Performance: Over 90 percent conversion efficiency under appropriate operating conditions. Cooling: Thermal dissipation design plus fan cooling for stable operation under continuous or power use. Practical applications Daily vehicle up: Use solar input during daytime parking to maintain battery state of charge for daily commuting, reducing grid energy use. Combined charging at home: While plugged into a main charger, add solar input simultaneously to shorten overall charging time or reduce grid draw. Remote or off grid charging support: In locations with limited grid availability, rely on solar input to supplement battery charging while maintaining controlled thermal conditions. What to expect Reliable solar to battery conversion with efficiency. Seamless operation when both solar and main charger inputs are present. Stable performance over extended use thanks to improved cooling and thermal management. This product is intended for integration with solar charging systems and electric vehicle charging setups that support external solar input and concurrent charging. Refer to system compatibility and installation guidelines from your vehicle or charger manufacturer before integrating.