METHODS FOR CHARGING A RECHARGEABLE BATTERY

摘要

Disclosure has a method for charging a rechargeable battery. The rechargeable battery is charged by a charger in a first constant current mode for a main charge time period. After the main charge time period, the charger stops charging the rechargeable battery for a relaxation time period. During a sample time period that starts after a predetermined settle time period following the beginning of the relaxation time period, the charger detects an open-circuit voltage of the rechargeable battery to compare with a target voltage. If the open-circuit voltage is less than the target voltage, the charger charges the rechargeable battery in a second constant current mode for a coercive charge time period.

主权项

1. A method for charging a rechargeable battery, comprising:
charging the rechargeable battery in a first constant current mode for a main charge time period; after the main charge time period, stopping charging the rechargeable battery for a relaxation time period; during a sample time period that starts after a predetermined settle time period following the beginning of the relaxation time period, detecting an open-circuit voltage of the rechargeable battery and comparing the open-circuit voltage with a target voltage; and if the open-circuit voltage is less than the target voltage, charging the rechargeable battery in a second constant current mode for a coercive charge time period.