【Maximum 12 units in parallel】The maximum number of 60A mppt controllers that can be connected in parallel is 12 to increase the solar system's total capacity and improve its overall power output. This can better meet the needs of large solar systems while improving their reliability and stability. In addition, paralleling is also conducive to system maintenance and management, making the system operation more flexible and efficient. One-click reset to factory settings 【Customizable Charging Current Limit】Different types of batteries have varying requirements for charging current. Customizing the charging current limit ensures the charge controller is compatible with multiple battery types. Rated Battery Charging Current: 60A, the configurable range for the charging current is 2 to 60A; Rated Load Output Current: 25A; When the battery is 12V system: Suggest the PV input power 720W, suggest pv input voltage range: DC20V~DC75V; 1440W 37~100V when in 24V; 2100W 50~155V when in 36V; 2800W 72-155V when in 48V 【Dual Cooling, Efficient Heat Dissipation】The 60amp charge controller is constructed with die-cast aluminum, ensuring excellent heat dissipation and reduced power consumption. Additionally, it features a turbofan fan for efficient cooling (activates at temperatures >45°C and turns off <40°C). The upgraded turbofan fan cooling system is quieter and more effective, making it suitable for use in RVs, commercial vehicles, boats, yachts, and solar systems, and equipped with an external temperature probe configuration 【Compatible with Multiple Type Batteries】Negative grounding design controller safer, 60a charge controller compatible with a variety of 12/24/36/48V batteries(lead-acid and lithium, User customize); Sealed, Gel, Flooded and LI (LiFePO4 and Lithium-Ion) battery charging parameter pre-set, other battery can be customized charging parameter according to your need. User-programmable Absorption Voltage / Float Voltage / Low Voltage Cutoff / Load Timer 【Enhanced Protection and Lithium Battery Compatibility】The solar controller provides comprehensive protection against various faults, including overcurrent, short circuit, reversed polarity, overvoltage, over-discharge, and over-temperature. It enhances precision in battery temperature monitoring through an external temperature probe configuration. The system is compatible with lithium batteries and adjusts charging cycles accordingly. It also activates lithium batteries with solar panel energy, with precautions to prevent overcharging, but please note that Do not charge lithium batteries when the temperature is below 0°C 【99% Tracking Technology】MPPT Charge Controller with advanced Maximum Power Point Tracking technology can continuously track the array’s maximum power point to get the maximum power to charge the battery. The tracking efficiency is not less than 99% and the peak conversion efficiency is up to 97% 【！】Please note that the PV input must be disconnected before setting parameters. If the solar controller displays night mode, please perform a reset using the following method: With only the battery connected to the controller, press and hold the last button for more than 5 seconds to restore the solar controller to factory settings. 【Maximum 12 units in parallel】The maximum number of 60A mppt controllers that can be connected in parallel is 12 to increase the solar system's total capacity and improve the system's overall power output. This can better meet the needs of large solar systems while improving the reliability and stability of the system. In addition, paralleling is also conducive to system maintenance and management, making the system operation more flexible and efficient. Please note that the PV input must be disconnected before setting parameters