| 摘要 |
The battery charging method detects battery temperature and comprises a temperature maintaining charging step wherein average charging current is controlled to drive battery temperature to a holding temperature, and charging is performed while maintaining battery temperature at that holding temperature. In addition, a temperature increasing charging step is provided prior to the temperature maintaining charging step. The battery is charged with a current which raises battery temperature until the holding temperature is reached. When battery temperature rises to the holding temperature in the temperature increasing charging step, charging can transition to the temperature maintaining charging step.
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