What is the effect of the charging current on the battery?

The impact of charging current on batteries is as follows:

1. **Shortened Charging Time**: A higher charging current can accelerate the battery charging process, thus reducing the charging time.

2. **Heat Generation**: Increased charging current leads to higher internal currents within the battery, resulting in heat generation. Excessive heat can affect battery performance and pose safety risks.

3. **Gas Generation**: Under higher charging currents, chemical reactions within the battery may produce gas. If the battery is not properly designed or operated, gas generation can lead to thermal runaway and pose risks such as battery explosion or fire.

Therefore, to ensure battery safety and stability, it is recommended to choose an appropriate charging current based on the battery type and specifications. Typically, the maximum charging current should be controlled within a certain proportion of the rated capacity of the battery to avoid excessive heating and safety hazards.