I will answer your first Question. Changed to 1500W in 2021. No problems so far. All works as with 1200W. But I will check the size of the wires next time I am on the boat. Wire size calculator recommends 25mm2 for 1500W load on 24V. For 1200W calculates 16mm2. I do not think that I will change anything in case if it is 16mm2, but will put a note in boat maintanance book. -- Slavko SM 2000 #279 Bonne Anse in Croatia
