I know we can use the chargers as single-phase but it would be nice to have a seperate cahger that is just used fo single phase 220. custom applicators with a bigger 50kw generator it would work great to use 3 phase that are able to rewire. but not all farmers who want to spray just their own acres will want to buy a big generator. they will want to use a mobile generator and charger that is just as fast or have another charger that is a bit cheapers for stricty single phase. also, we should be able to update the chargers on single phase 220.