Judging method: Judging whether the charging head is a fast charging head can look at the above parameters, generally the power of the fast charging head is larger.
one
By actually recording the phone charging time. According to the experience of use, if you start charging when the power is 0~10%, after half an hour or so, the phone power can be basically restored to about 60%, and the device can be basically judged to be fast charged.
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two
The DC input voltage of the charging interface is 5V±5%, and the maximum absorbed current is 1800mA. As long as the output of the adapter breaks through this condition, it is fast charging.
three
Download a software that detects charging, and you can see the charging temperature, voltage, and whether the device has a fast charge.
Mainly look at the parameters of the charging head. If the charging head indicates an output voltage of 5V two amperes or greater. Or the output voltage of the mobile phone is higher than five volts, and the output current is greater than two amps. And some charging heads will also indicate that there are different output currents under different voltages. These parameters all indicate that this charging head is a fast charging head, which can provide the premise of fast charging for the mobile phone.
To determine whether the charging head is a fast charging head, you can look at the above parameters, and generally the power of the fast charging head is larger.