It takes 3-5 hours. It is related to the temperature when charging, the conduction speed of the charging cable, and the state of the phone when charging. It is best to charge at a temperature of 20-25 degrees, and the charging efficiency is highest when the phone is not in use.
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Specific expansion:
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First, note on mobile phone charging:
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1, the mobile phone charging time can not be too long, in addition to the newly bought mobile phone before the first few times need to charge more than 10 hours, the other time after the mobile phone full should be removed the charger, the general mobile phone full charge takes 2 to 4 hours.
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2, do not make phone calls when charging the phone: it is easy to generate static electricity when making a phone call, especially in the weather of rain and thunder, and do not make phone calls when charging the phone.
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3, use the original charger: for safety reasons, different brands of mobile phone chargers, universal charger try not to use.
If it is an ordinary output 1 amp charger takes about 2 hours, if your Apple phone is more than Apple x is to support the use of fast charge it will take much faster about 1 hour, so how long can be full depends on what charger you use, output how much MA, of course, is the need for mobile phone support, I still recommend you use fast charge.
Most of the charging speed of the 2a charging head is basically full in 1 hour 10 minutes to 30 minutes, of course, if it is not the iPhone x, which is a small-screen iPhone, then it hovers around 1 hour.
Apple charger can be fully charged in two to four hours.