Seems years ago batteries were labeled and advertised and sold based on Amp Hrs (more then CCA) which in my way of thinking is a good meaningful energy storage capacity figure. Like many things they change ratings and labels and hyperbole to sell an item. Nowadays you hear more of CCA and Reserve Capacity for an auto battery. However, for an automotive starting battery where you need a short term sudden burst of high amperage I can understand the significance of Cold Cranking Amps while in say my RV where I'm more interested in a longggggggggg term low amperage deeper draw down I see why Amp Hours is a good measure. SO MAYBE THATS PROGRESS LOL
On my RV's Solar Panel system I have both an ammeter and a voltmeter which really tells me whats going on.
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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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