Regarding trolling motors…I’ve heard of some guys running small TM on kayaks and such of these types off batteries. Can’t speak from experience and don’t own a boat, so can’t help much other than that.
I apologize for not specifying, I wasn’t sure what other “options” there were for lithium batteries and I ASSumed they would have other, larger capacity ones. I certainly wouldn’t try to run my trolling motor on 2 of these batteries, unless I only wanted to fish for a half hour.