The Research on Detection Method of Battery Discharge

At present, there is low accuracy and single discharge mode existing in battery discharge systems. During detection procedure of battery discharge the parasitic resistance is the key factor that affects the measurement accuracy, thus one of the important measures to improve the detection accuracy of the battery discharge is to eliminate the influence of parasitic resistance. To solve the above problems, this paper introduces a battery discharge detection technique based on numerical control constant-current source and four terminal measurement. The research shows that the detection approach not only effectively eliminates the influence of parasitic resistance to measurement accuracy, but also achieves the unity of various discharge methods, which can better meet the dual requirements of manufacturers, including both the detection accuracy of battery discharge and multiple discharge methods.