MPPT and PWM: Charge difference PWM uses constant 3-stage charging (large capacity, floating and absorption) to charge the battery, while MPPT is the maximum power point tracking, which can be considered as multi-stage charging. The conversion efficiency of MPPT is 30% higher than that of PWM. The solar charge controller controls the power output of photovoltaic solar cell components and batteries to the load according to the power demand of the load. It is the core control part of the entire photovoltaic power supply system. Therefore, you buy an inverter equipped with the latest technology, which is advertised as the best. Generally speaking, inverters are well advertised. Therefore, we know them very well and have a general understanding of their performance under various workloads. But what about the core unit? Your inverter battery? Powmr is the most trusted backup power brand in the world, with a history of more than 30 years, and has won the trust of more than 11 million customers. Powmr has reliably fulfilled its promise to provide first-class products.