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Batteries Die in Thirds

Bart Cotton

Describes how battery aging observations have been made over the last couple of decades by various battery monitoring instruments and systems. The advancement of battery monitoring technology and organized collection and archiving of battery performance data has made this possible. By collecting and analyzing historical data, both on individual batteries and battery systems/strings utilizing commonly used battery measurement parameters, typical aging patterns can be observed. These patterns or fingerprints have a commonality. Using the historical record and current data, predictions of battery performance, and prognostication of battery lifetimes can be made using real data versus estimated data based on theory or laboratory results.

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