Traction Battery Controller Using Active Charge Control, Customized to Type of Charge Station Charging Current, to Detect Battery Operating Characteristics during Battery Charging

A method includes varying a charging current, from a charge station for use in charging a battery, depending on a type of the charging current. The battery may be a traction battery of an electrified vehicle. The method further includes measuring a voltage of the battery as the charging current is being varied, driving an estimator, that utilizes voltage feedback based on a model of the battery to provide parameter/state estimations of the battery, with the voltage to output a state-of-charge (SOC) of the battery, detecting an operating characteristic of the battery using the SOC, and controlling the battery according to the operating characteristic.