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2004


The Study of Intenal OHMIC Testing in Detecting Initial Lead-Acid Battery Defects

Mike Nispel

John Kim



The use of instruments to directly or indirectly measure the internal resistance of the valve-regulated lead-acid (VRLA) cell has dramatically increased in recent years. There is a desire to establish technique to determine the state-of-health of the battery in an attempt to improve the reliability and service life of the battery system. The focus has been on the VRLA batteries, primarily because of the inability to visually inspect the internal element, and the difficulty in predicting potential indivdual cell failures.


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