Whether Huawei chargers and other brands of chargers are interworking mainly depends on whether the charging protocol is compatible. If the charging protocol is compatible, it is theoretically universal. To check whether the chargers of Huawei 20plus and Honor 30pro can communicate with each other, you need to check whether the charging protocols of the two mobile phones are the same or compatible.
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However, although it is theoretically possible to communicate, it is best to use the original charger of each phone. Because the original charger not only matches the mobile phone charging protocol, it may also have some special features, such as fast charging, over-voltage protection, etc., which may not be provided by other brands of chargers.
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The above information is for reference only. If necessary, you are advised to consult Huawei and Honor's official customer service for the most accurate information.
Yes, it's interoperable, but the charging rate is different