Visual Inspection

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A visual inspection of the battery must be performed before taking measurements, e.g. before measuring open-circuit voltage or carrying out the battery load test.

This test can be used to determine:

Whether the battery housing is damaged. Leak-free operation and function of the battery cannot be guaranteed if the housing is damaged.
Whether the battery terminals (battery line connections) are damaged. The line connections might not make contact if the battery terminals are damaged. This can cause the lines to catch fire and can result in malfunctions in the electrical system.