Thinking abut a cordless hedgetrimmer
alan_m expressed precisely :
For the same power and ability to cut the machine would weigh the same, and
then add the battery.
I wonder if something between a cordless and a corded might be more
suitable, not that I have ever heard of one?
I have in mind a 12v lead-acid battery, in a portable box, with a flex
from battery to hedge cutter.