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Charge iPhone Properly!

I would like to know that Apple 5w power adapter can use with iPhone 12 Pro Max without effect to battery capacity percentage?


One more thing, I heard people say that using 20w fast charge can degrade iPhone's battery capacity percentage?

Posted on Dec 26, 2020 7:12 PM

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Posted on Dec 26, 2020 7:25 PM

Yes, you can use the old Apple 5W charger to charge your iPhone 12 Pro Max. Of course it is the slowest charger out there and will take the longest time to fully charge your iPhone.

No, there will be no issues if you used the 20W Fast Charger from Apple. You can use it all day and there will be no issues. Each iPhone has a protective charging circuit which will prevent over-charging the iPhone including controlling the the flow of total Watts throughout the charging process. There is no truth to what you have heard people say in your second question.


Axel F.

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Question marked as Best reply

Dec 26, 2020 7:25 PM in response to pichnil1168

Yes, you can use the old Apple 5W charger to charge your iPhone 12 Pro Max. Of course it is the slowest charger out there and will take the longest time to fully charge your iPhone.

No, there will be no issues if you used the 20W Fast Charger from Apple. You can use it all day and there will be no issues. Each iPhone has a protective charging circuit which will prevent over-charging the iPhone including controlling the the flow of total Watts throughout the charging process. There is no truth to what you have heard people say in your second question.


Axel F.

Charge iPhone Properly!

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