Guys, You can have a normal AC powertool run on battery. Feed a series wound motor AC or DC and it will run.
Voltage will.
Feeding a 240VAC anglegrinder 24VDC will make it about as powerfull as a newborn kitten. if it turns.
And without any cuteness.
Also, reversing it will be a fun situation.

J.A.G, everybody is telling the same thing. Shouldn't be there some truth to those statements?