DCR , or DC internal resistance , refers to the resistance value corresponding to the voltage loss caused by the internal materials, electrolyte, electrode interface, etc. of the battery under the action of constant DC current . It is one of the important electrical parameters to measure battery performance and health status.
Note:
DCR is closely related to temperature and state of charge (SoC), and standardized test conditions are required
Unlike AC internal resistance (ACR), which measures the impedance behavior of the battery under high-frequency signals, DCR is closer to the performance under actual workload.
