Join Date: Dec 2013
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Re: Magnum 2000 charger/inverter install
Ditto, I'm not trying to be argumentative. I don't doubt that what you're doing works for you and your boat. If you've got a clean wiring setup without a bunch of parasitic 24 hours loads (e.g. bilge pumps with solid state water sensors, stereo preset memory backup, etc., etc.) so you can get a true open circuit voltage measurement and you're not making your voltage measurements at different temperatures within the same discharge cycle, your method is totally valid.
I was just trying to make the point that the current sensing method works well too and is tolerant of a lot of wiring sins, temperature variation, battery styles, etc. and I wouldn't hesitate to recommend it as a workable, even preferable, solution without having access to the boat in question.