Traditional SDC Measurement is estimating the self-discharge current by monitoring the battery's open circuit voltage drop after a long time. Then find the capacity change corresponding to the OCV change, calculate the estimated SDC by capacity change divides time. Connect the battery to a certain load and discharge it at a constant current until the battery voltage drops to. Battery capacity testing / discharge testing is an essential part of battery maintenance and the most reliable health indicator of a battery. This application brief outlines three major functional tests that a battery tester performs while showing how to achieve the desired level of regulated error. Batteries naturally degrade over time, leading to. There are a number of different tests like: visual inspections, specific gravity, float voltage and current measurements, discharge test, individual cell condition, inter-cell resistance, and others, which are recommended in IEEE, NERC and other standards for diagnosing the condition of the battery.
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