Patent ID: 9599519
Date: 2017-03-21
CPC Classifications: G01K,H02J

Claim:
1. A power-management unit, comprising: a single-wire-interface (SWI) circuit configured to receive charging current feedback including charging current information and a representation of a temperature state of a battery pack from a battery-monitoring mechanism in the battery pack via a signal line, wherein the power-management unit is external to the battery pack; a memory coupled to the SWI circuit and configured to store at least the representation of a temperature state of the battery pack; a temperature-monitoring mechanism coupled to the memory and configured to determine the temperature state of the battery pack based on the stored information; and a charger coupled to the memory and the temperature monitoring mechanism, operatively coupled to the SWI circuit, and configured to be coupled to a battery in the battery pack; wherein the charger is configured to charge the battery based on the charging current feedback so that the battery can be safely charged at a higher nominal charging condition than in the absence of the charging current feedback.