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Battery tester setup, battery test knowledge, troubleshoot and other issues while running the battery testers.

What is Internal Resistance (IR) and how to test battery resistance

What is Internal Resistance (IR) and how to test battery resistance A battery can be regarded as an ideal voltage source in series with an impedance, which is called internal resistance. When the battery works, the voltage output is lower than the open-circuit voltage (abbreviated as OCV). The difference is the voltage drop caused by the …

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