Patent ID: 9634511
Date: 2017-04-25
CPC Classifications: G06F,H02J

Claim:
1. A charging control method, comprising: acquiring a decision parameter for a charge mode; deciding, based on the decision parameter, whether a first charge mode or a second charge mode is adopted in a current charging operation; charging a rechargeable battery with a first charge voltage in the first charge mode, and charging the rechargeable battery with a second charge voltage larger than the first charge voltage in the second charge mode; acquiring a control parameter for a charge current of the battery while the battery is charged in the first or second charge mode, wherein the control parameter for the charge current comprises: a first charge duration counted since starting charge, a second charge duration counted since a voltage of the battery reaches a first preset voltage threshold, and a temperature of the battery; modifying, based on the control parameter, the charge current from a first charge current to a second charge current less than the first charge current; and charging the battery with the second charge current; wherein, time counted from when the voltage of the battery reaches the first preset voltage threshold until the battery is fully charged is divided into at least two non-overlapping time periods each corresponding to a respective charge current, wherein a first one of any adjacent time periods of the at least two time periods corresponds to a charge current larger than that corresponding to a second one of the any adjacent time periods; and wherein a duration in which the battery is charged with a charge current exceeding a preset current intensity is reduced as the temperature of the battery increases.