Aohai has officially launched its new 4.2kW off-grid inverter series, including the FSF-4.2K1P-BL and FSF-4.2K1P-BL-PRO. Designed for residential energy storage, backup power, and off-grid applications, the series delivers enhanced PV adaptability, reliable power performance, and intelligent energy management.

The FSF-4.2K1P-BL features higher PV input capability, a 60V low start-up voltage, and a wide MPPT voltage range, improving solar system flexibility under different irradiation conditions. With lithium battery integration and BMS communication, the inverter enables efficient coordination between PV generation, battery storage, and household loads.

To enhance reliability in demanding environments, the inverter  adopts an amorphous transformer design, pure soft-switching power technology, and optimized thermal management. The inverter supports stable full-power operation at 40°C ambient temperature, providing reliable performance in high-temperature applications. It also delivers 200% rated power output for 5 seconds, supporting high start-up loads such as refrigerators and water pumps.

The FSF-4.2K1P-BL-PRO further enhances user experience with an integrated touchscreen display and cloud-based management capabilities. The launch of the FSF-4.2K1P-BL  expands Aohai’s residential energy storage portfolio, providing flexible and reliable power solutions for households worldwide.

Aohai will continue to focus on innovation in distributed energy technologies, delivering efficient and reliable energy solutions to meet the evolving needs of global residential markets.