PTPV series is a high-performance energy sto rage system independently developed by us. It uses high-quality lithium ironphosphate batteries and is equipped with an intelligent BMS. It has long cycle life, high safety,and good sealing; High-frequencyof- grid hybrid inverter, built-in MPPT controller, can provide efficlent and reliable energy solutions for solar off-grid powergeneration systems, household solar storage systems, and commercial energy storage systems.