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Question: Can use power adapter with 18W to charge iPhone 8 with lighting cable?

Can I use a 18W adapter to charge up my iPhone 8 with lightning cable? As the new iPhone is currently be able to support 29W fast charging as claimed by Apple (need USB-C to lightning cable). Thank you for the information in advance.

iPhone 8, iOS 11.1

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Nov 16, 2017 10:55 AM in response to Celxiuz In response to Celxiuz

Hi Celxiuz. It will likely not charge any faster if you use a regular USB to Lightning cable. The charging current is actually regulated by the charging circuit in the iPhone. The power supply is just a power source. The USB-C cable probably includes circuitry indicating that fast charging is available.

Nov 16, 2017 10:55 AM

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Question: Can use power adapter with 18W to charge iPhone 8 with lighting cable?