I have a new Pramac S5000 (Generator), I’ve been trying to charge my 3 x Pylontech US3000 batteries. Once generator has started, it sends a large amount of watts to the battery and then my Multiplus turns charging off, and then it turns on again and repeats the process. When the watts goes up the generator works hard. I’ve left it on for 30mins yes before and it eventually settled down to giving around 900watts to my batteries. Is there a way for my generator to work straight away and efficiently with my system.