Join Date: Feb 2010
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Re: Power Battery Set up for 27ft sailboat
So you don't have a dedicated battery charger hooked into the batteries?
I was under the impression the float charge is different between the two types. Also how do you equalize and desulfate unlike batteries?
As I said above, both the solar panel and the shore power charger are wired to the main (golf cart battery) bank. The Yandina combiner limits the voltage to the AGM battery (bank). I rarely use the shore power charger, and the charge controller on the solar panel limits the voltage once the main bank is charged. The controller does have an "equalize" mode that kicks in once a month, but this doesn't matter to the AGM because it's "shielded" behind the combiner. I suppose that the AGM does experience higher voltages than it probably should for short periods, but this doesn't seem to have much of an effect, since the AGM is six-years-old now and seems to be fine (although the entire system has only been in place for two or three years). In any case, the AGM shouldn't need desulfonating since it's almost always fully charged.
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