Reader's question: Can it hurt if you charge the iPhone with the iPad power supply?

Can it hurt to charge the iPhone with the iPad power adapter? - I was asked this question the other day. And as you know from my previous blog posts, I like to experiment with chargers, power banks, charging cables and the like. However, it doesn't take a big experiment to say: No damage will be done if you charge the iPhone with the iPad charger. On the contrary, the Apple smartphone tends to charge faster. I have compiled the details for you below.

Can it hurt to charge the iPhone with the iPad power adapter? Or should you always charge your Apple smartphone with the tablet charger? Here you will find all the answers and information;)

Can it hurt to charge the iPhone with the iPad power adapter? Or should you always charge your Apple smartphone with the tablet charger? Here you will find all the answers and information;)

Why a powerful charger won't harm the iPhone

For example, the iPhone 11 from 2019 only comes with a 5-watt charger. The fast charging function of the Apple smartphone only works with a charger with 18 watts or higher. This is included with the iPhone 11 Pro (Max), for example, which can recover up to 50% of the battery in 30 minutes without an additional power supply unit. For this reason alone, you should use more powerful chargers on most iPhone models; because they can take more power!

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And even if the charger goes beyond the limit of the iPhone, for example the 30 watt USB-C power adapter for the iPad Pro, that's not a problem. If you use this instead of the 18 watt USB-C power adapter, the iPhone still only consumes 18 watts; or less if it is an older model. Today's technology is smart enough to negotiate with one another what the charger delivers and what the end device can take;)

My tip: Charge your iPhone with the iPad power supply!

According to the technical possibilities as well as recommended by me, you can and should charge your iPhone with the iPad power supply. Ideally, that's exactly why you make sure that you can finally use the smartphone's quick charging function. In any case, it will charge faster than with the original iPhone power supply that came with it. Well, at least if you don't have a current Pro model: D

Accordingly, it is of course also possible to use a powerful power supply unit that does not come from Apple itself to charge the iOS smartphone. From my own experience, I can recommend this to you, for example AUKEY PA-D5 with 60 watts, Anker PowerPort III mini with 30 watts As well as the Anker PowerPort Atom III with 60 watts. You can use the 60W parts on the MacBook in addition to the iPhone and iPad;)

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6 comments

  1. Carlo says:

    Any quick charge will damage the battery. A LiION battery lasts longest when it is charged slowly and only up to 80-90%.

    • sir appleot says:

      Yes that's right. But iOS takes care of the battery quite well. For example, fast charging is not carried out with every battery level in order to save the battery. There is also this feature that the iPhone recognizes when you get up regularly and only charges to 80% and then does the rest shortly before you get up. In addition, charging via the old iPad power supply unit with USB-A connection is nowhere near as fast as via the new USB-C power supply unit of the iPad Pro. So if you use an iPad power supply with a USB-A connector, you are still a long way from real "fast charging", which charges 50% of the battery in 30 minutes. So I wouldn't worry too much about it.

      • martin says:

        I can't (yet) observe that with the feature that the iPhone intelligently charges up to 80% and then waits to get up normally. The cell phone is staked out during the week in a time window of a maximum of 30 minutes. Do you know how long iOS has to learn the rhythm?

        • sir appleot says:

          The feature is only available on iOS 13. Have you installed that? There is no statement as to how long it will take the iPhone to learn intelligent charging. At least not from Apple ... but some nerd will find out soon.

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