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How to Monitor the Condition of a Car Battery

1 Answers

OGraham

07/29/25 11:19am

Methods to monitor the condition of a car battery are: 1. Inspect the exterior for any deformation, leakage, or burn marks, and check for oxide seepage at screw connections; 2. Conduct a load test—if the battery shows no external abnormalities but discharges significantly faster than normal under a certain load, and fails to restore normal backup time after charging, it indicates battery aging; 3. Measure the terminal voltage of each battery in the battery pack—if one or more batteries show terminal voltages significantly higher or lower than the nominal voltage, it suggests battery aging; 4. Check the charging voltage of each battery in the battery pack—if one or more batteries have charging voltages higher or lower than others, it confirms battery aging.

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