Best charging rate on most lead acid batteries is the lowest setting or 1-2 amps. If the battery has sulfated somewhat it will allow the sulfated substance to flow back into the water/acid mixture. A fully charged battery, if it's a 12 volt battery is 12.65 volts because each of the six cells has a fully charged voltage of 2.1 volts. I would use a hydrometer to determine charge condition. If any cells vary by more than 50 points with a hydrometer the battery is considered defective. Hope this helps. Gerard
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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