How to Check the Condition of a Car Battery?

1 Answers
DiConnor
07/25/25 6:19am
Here are several methods to check the condition of a car battery: 1. Empirical Method: For a new battery, inspect the exterior for any scratches or abrasions, then check the metal terminals for rust. For a used battery, observe whether the electrolyte is cloudy. Cloudiness indicates softening of the positive plates. 2. Instrument Testing Method: Connect the positive and negative clamps of the battery tester, select external testing, press enter to choose 'Standard Lead-Acid Battery', adjust the corresponding rated value, and press enter to confirm the test. Upon completion, the battery's voltage, rated value, and test value will be displayed on the tester, allowing you to determine the battery's condition.
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