Beautiful and powerful inverter. I work with my two 100Ah lithium-ion batteries. Batteries are a weekly reference as they only offer continuous operation at 200Ah. During installation we had to talk to the customer. Support. The wires in the inverter that connect to the air conditioner wires have come loose. As a result, the inverter was ready to supply power, but could not due to lack of communication. Plugged it in, reset everything and everything worked. The fans turn on and change speed depending on the load. The device is located in an area where it can remain cool. Hope this lasts long.