Comment by rootusrootus

Yeah you can use a Victron 230V inverter along with an Autotransformer to get split phase 240V. Also, I was sort-of mistaken in my earlier comment but can no longer edit it. The MultiPlus II 2x120 cannot make split phase 240V on battery, but I see that the regular MultiPlus II can be paired to do exactly that. About $2K for a setup capable of 240V 20A. Not inexpensive, but it is Victron, which is amongst the best.