MOAH battery? Whould that be a super capacitor?
I have seen electric motors (eteck pancake) mounted to a 9.9 outboard.
Remove the gasoline power head then fabricate a connector and mount for the electric motor. There is some unnecessary gearing (no need for reduction or reverse) but it will work.
You know what your doing...you boat is going to be great.
I love custom machines.
MOAH = more
(it's slang)
I WISH I knew what I was doing..
At any rate...it gives me something to do.
(retired)
I just checked eteck...
NOW I'm thinking about a paddle wheel.
(again)