The advantage of using fast charging is that the charging speed is fast and it saves time. However, the fast charge uses direct current, which has different requirements for the battery, and the power of direct current is quite large, and a long time will cause a relationship with the life of the battery.
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The advantage of using slow charge is that it will not cause any damage to the battery, and the basic charge is real electricity, which is quite useful, but the charging speed is quite slow, sometimes causing unnecessary trouble.
Charge slowly, save money and be good for the battery. Fast charging saves time