This SAE Standard applies to 12 V, automotive storage batteries of 180 min or less reserve capacity. This life test simulates automotive service when the battery operates in a voltage regulated charging system. It subjects the battery to charge and discharge cycles comparable to those encountered in automotive service. Other performance and dimensional information is contained in the latest issue of SAE J537. This document is intended as a guide toward standard practice, but may be subject to change to keep pace with experience and technical advances.
The test procedure has been modified as a result of a study completed to evaluate the correlation of this test to field failure modes and life for a broad range of current 12 V Automotive Lead-Acid Storage Battery manufacturing technology. This test was found to have an insufficient correlation to be used as a universal test.