Say what?

"Work" in an electrical circuit is volts and amps.
Double the volts, basically halve the amps.
Part of why some home equipment (eg, window AC unit) goes to 220VAC because the normal load is beyond a typical 15A breaker, maybe even beyond later 20A breakers.
Cost (buying the unit vs. running a dedicated 220VAC single phase circuit) vs. benefit.

Hmmmmm....let me think......inductive loads are a bit different. Resistive loads are fairly linear.
Coil or motor loads are on the inductive load end, they vary. They typically have an inrush current.
Resistive loads are fairly linear, they are what they are, minor variance based on temp.

OK, not arguing a field guy vs. an EE, way beyond the topic of this thread.

I will say I am looking for info about the "plating issue" in some battery chemistries, never heard that before, I may learn something new (which is a good thing......).