Join Date: Jan 2008
Location: Fremont, WA
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My guess is this is not Galvanic, but ground differentials from shore power.
If the Green ground on your boat or your neighbor’s boat goes through some corroded connections that create resistance, you will get a voltage differential that will eat zincs alive.
I would disconnect your charger, all three wires, and see if it still exists. If so, then this is the typically shore power grounding issue.
If a man must be obsessed by something, I suppose a boat is as good as anything, perhaps better than most. A small sailing craft is not only beautiful, it is seductive and full of strange promise and the hint of trouble.
- E.B. White