Huawei fast charge can not charge Xiaomi, because the voltage and current of each brand of charger are not the same, and the charging voltage and current suitable for each mobile phone battery are not the same. If you do not use the original charger, it is easy to damage the battery, too large or too small current and voltage will cause harm to the phone. The charger that comes with the phone is optimized for the battery of the phone, which will be better for the battery.
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Android includes HarmonyOS, if its charging head design can not form a super fast charge with the configuration of the phone, it can be 5V2A charging, which is very slow.
1 It is not recommended to charge millet, each charging head has corresponding control.
2 All kinds of rechargeable batteries have their charge-discharge characteristics. If you want the battery to be durable and extend its life, it must be operated according to its laws. For example, mobile phone batteries, now generally use lithium batteries, large capacity, good stability, no memory effect. However, if the charger is used carelessly while charging, it will damage the phone.