Now there are very few 2A data lines, basically 3A data lines. IQOO's 44W fast charge is a 5A data line, not a 4A data line, and you need to buy a 5A data line to reach 44W fast charge
Mobile phone fast charging failure is divided into the problem of the mobile phone itself, and then there is the problem of charging equipment.
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Mobile phone problem:
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The flash charge of the mobile phone will show fast charging on the desktop when charging, if the mobile phone cannot be quickly charged, it may be that the mobile phone desktop still shows fast charging, it may be that the battery of the mobile phone has been too depleted, resulting in flash charging.
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Charging equipment problems:
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Most of the general mobile phone only the original charger and charging line can match the flash charge mode of the mobile phone, any non-original equipment is unable to open the flash charge mode, and will charge more slowly.
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Note: The temperature of flash charging is generally 15-35 degrees. Too high or too low temperature will affect the speed of flash charging. Because the temperature will affect the activity of the battery, resulting in slower charging and no charging. But too hot a phone can cause. Battery damage, while low temperatures do not.