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Re: (ET) Battery maintainers



Question from a non-electronics guy:
My wife has a wall cube gizmo which takes 110v and distributes it to either 18v, 12v, 9v, or 6v, depending on the port you plug into the laptop, radio, etc.  Why does it seem so elusive to develop a unit which takes 36v and distributes it to 18v (lift), 12v (lift), 24v (chainsaw), or 36v (original implements), thereby eliminating equalization problems and extending battery life?
SteveA
e15