Is a lightning symbol of 1A, 2 lightning symbol of 2A, charging 2A is faster, the output current is not the same, one lightning is 1A recommended to charge mobile phones, two lightning is 2.1A recommended to charge tablets or mobile phones.
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Because the output current is not the same, the charging time will be different, the output current of the two lightning symbols is large, the time used is relatively short, and the output current of a lightning symbol is low, so the charging time is relatively long.
Charging symbol indicates the positive electrode _ indicates the negative electrode.