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How to Evaluate Time-Adjusted Battery Capacity Results

Volney Naranjo

Daniel Carreño

Robert Foster

This paper presents the results, corresponding analysis and observations from six capacity tests performed on the same battery at different constant discharge rates. Particular aspects related to the test parameters and additional measurements during the tests are discussed in order to provide guidance on how to review and analyze capacity test results. This illustrates the factors to consider when reviewing capacity test results and provides the reviewer broad criteria to read and make decisions from the result. Additionally, taking advantage of performing multiple tests on the same battery, the paper discusses the accuracy of the discharge tables by comparing the result of the capacity when using different discharge rates.

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