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Re: Battery Testing
I think Eric has the right idea to make a small device that can measure the energy (charge) remaining in a battery, esp if it was designed to only work with one specific battery (the KOP Exide for example). Measuring the voltage with a load applied does give you a good indication of where you are on the discharge curve.
But now he has me wondering. I dont think you could come up with an instantanious check that will tell you how much capacity is left in the battery (ie, is this a new battery, or one that will only last 30 seconds after its been fully charged)
but I wonder if you could do a short charge, discharge sorta thing to a battery, and get some indication of how well it will hold a charge? Design a tester that would put 2A into the battery for, lets say, 30 seconds, then pull 2A back out for 30 seconds, and see how much the voltage changes?
That might be feasible. Eric might be on to something here.
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