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It's hard to say, if it's a mobile phone brand's private charging protocol, it's generally backward compatible. If it is a two-brand, or even a third party, check whether it is com...

55 watt fast charge data cable can charge 30w mobile phone?

It's hard to say, if it's a mobile phone brand's private charging protocol, it's generally backward compatible. If it is a two-brand, or even a third party, check whether it is compatible with the fast charge protocol. Now some fast charges are compatible with each other. But rarely, that adds to the cost. After all, the price is high, and although there are more compatible devices, few people are willing to pay a lot of money for a charging cable.


Of course, but pay attention to whether the voltage is consistent, if the voltage is high, it will damage the phone.