Quote:
Originally Posted by Rick  Evaluating a 12 Volt flooded-cell battery of unknown history and quality
Terminal voltage, Vt = 6(0.85 = SG) where SG is the specific gravity of the electrolyte for a 12 Volt lead-acid battery (yes, this also includes AGM and gell-cell batteries). |
I'm guessing that the above equation is actually Vt= 6(0.85+SG)
since that gives reasonable voltage numbers.
Is this a hard equation, or a guesstimate? I have found three tables, all disagree and one of the table has voltages and SG at 5 degree intervals of which none of the columns match the equation.
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John