<b>Rapid battery health calibration across unseen dynamic charging conditions</b>

The dataset comprises 26 lithium-ion pouch cells (Li-Fun Technology, NCM811/graphite, 402035-type, nominal capacity 220 mAh at 3.0–4.3 V) tested under a designed dynamic-protocol-per-cell scheme, wherein each cell undergoes a predefined sequence of six distinct charging protocols.The batteries are organized into four groups:<b>Group-1</b> No. 1–17<b>Group-2</b> No. 18–20<b>Group-3</b> No. 21–23<b>Group-4</b> No. 24–26.Full details of the testing procedures are provided in the <b>Methods section</b>. A visual overview of the experimental workflow is presented in <b>Supplementary Figures 2–5</b>.<br><br><b>Note:</b> The testing of cell Group-1 No.2 was initially performed on 2024-01-23 but was not completed at that time. The experiment was subsequently resumed and finalized on 2024-06-24.