The characteristics of the battery itself. From a micro perspective, charging is a process from the negative electrode to the cathode and embedded into the positive pole. In the process, the more stable the movement of the movement of the active lithium ions, the greater the positive motion power, the less charging disorders, and the greater the charging and discharge current. Therefore, the main feature of hindering large current charging is the charging inside the battery. Under the high -power working state, the polarization resistance in the battery increases with the increase of the current, and will soon reach the control state and complete the charging, thereby reducing the battery's available power.

　　The heat dissipation performance of the battery pack. In addition to the charging and discharge capacity of the battery itself, the heat dissipation of the battery is also a great constraint. When the state of the cell itself is determined, the cells will produce heat, which will cause the temperature inside the capacitor to rise. If it continues to develop, the temperature of the battery will reach the allowable limit before it is fully charged. Therefore, proper radiator for the fast battery pack is a prerequisite for improving the capacity of the charger.

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