There are three main reasons:
1, charger use error 2, data line aging 3, mobile phone battery damage can not be fast charged, three of which must have a problem, in order to achieve the purpose of fast charging, charger, data line, mobile phone must support fast charging.
Charger use error, originally 9 volt 2 amp charger, used into 5 volt 2 amp, naturally can not be fast charging. Because the charger can support the power is 10 watts.
The same is true for data cables and mobile phones.
If the long-term use of the data cable or mobile phone causes its internal damage, it will also lead to too low charging power, resulting in too slow charging speed.
There is also a case of internal judgment error, resulting in the charger mistakenly believing that the phone does not support fast charging. For example, using a charger of a different brand from the mobile phone to charge, sometimes even if the mobile phone supports fast charging, it will not be fast charging. Fast charge involves many aspects, and whether to support fast charge is not related to the processor, more because of the support of the chip set around the processor, the hardware of the battery, charger and so on.
There are five conditions to realize fast charging, namely, charging head,. Wire, wire interface, internal step-down circuit (including the fast charging chip circuit on hardware and the protocol on software), and battery. Source: : Fast charge Source: : Data cable
Huawei mobile phones do support fast charging technology, which can achieve fast charging. Huawei's fast charge technology uses a variety of advanced charging technologies, such as super fast charge, super wireless fast charge, etc., which can provide higher power output for charging mobile phones in a short time, greatly reducing the charging time. This means users can charge faster, saving valuable time. Whether at home, in the office or on the road, Huawei's fast charging technology can provide users with a convenient charging experience.
That is your mobile phone does not support fast charging, the mobile phone does not have internal fast charging function