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Just need a monster [$$$$] Buck (DC-DC-Down)
Converter to run those attachments ...
Or, an economical source of replacement AC motors
for the attachments ... [again: big $ if you are going to replace many motors of
many sizes. Maybe workable if you could make the motors in a couple sizes
- and modular: LARGE = Snowblower / tiller / other large implement.
SMALL = mower, edger, chainsaw, etc ]
BUT, everything I have read still puts FET
controllers as cheaper than IGBT for low voltage battery powered devices.
Also, I think buying a few large, high capacity
batteries costs less than many low capacity batteries - as many of the AC
systems do - with multi-hundred volt battery packs.
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