Why don't you put a pair of sealed batteries in series in the bow thruster area, use a 6 amp smart charger off your inverter to maintain them, and eliminate all the complexities and long cable runs? That is what I did on my boat, and it's worked perfectly for 3+ years.
Ted
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Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
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