: A common symptom is the Relative State of Charge (RSoC) jumping suddenly (e.g., from 30% to 5%). This often indicates an overestimated Full Charge Capacity (FCC) or that the battery cells are no longer aligned with the factory discharge curve. Locked Status
The is a fully integrated, single-chip battery pack–based management solution. It belongs to TI’s Impedance Track™ fuel gauge family, which means it does not merely measure voltage to estimate remaining charge—it actually tracks complex battery impedance (internal resistance) over temperature and age to deliver highly accurate State of Charge (SoC) readings. bq40370
For a brand-new product, choose the BQ40Z50 (or BQ40Z80). However, if you are maintaining an existing medical or industrial product certified with the bq40370, switching to a new IC would require costly recertification. Hence, the bq40370 remains in active production. : A common symptom is the Relative State