The charging speed depends on the power of the charger, if the power of the charger is different, the charging speed is not the same. The charging speed is directly related to the charger, the current flow is large, the charging speed is fast, the current is small, and the charging speed is slow. Cheap no good goods, battery is a gap, there is no reason to ask after buying.
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Slow battery charging indicates that the battery is normal, can only be charged for a while, fast electricity should be the reason for low temperature, the lower the temperature of the battery, the worse the discharge performance.
This must be a problem with the battery of the electric car, which needs to be repaired or replaced