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iPhone 15 keeps coming on and off charge

I just got my 15 and i’ve been charging it with the cable from the box and an apple usb c plug, every time it goes up by 1-2% it comes off charge then goes back on again. I’ve tried it with another usb c apple cable and has the same issue, charged it with an anker cable in my car with the same issue and I’m at a loss now of what to do!


I’ve always had the old cable issue of wiggling it to the right angle to charge but this isn’t the same thing, it can be laid flat and still go on and off charge like no tomorrow! It’s on IOS 17.0.2.


It still does charge and hold charge it’s just annoying and a bit concerning that it keeps going on and off like it is


EDIT: not sure why it says i posted this on my 12, i have posted it on the 15 🤦🏻‍♀️

iPhone 12

Posted on Sep 28, 2023 3:37 PM

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Question marked as Best reply

Posted on Mar 4, 2024 1:55 PM

I have this same issue, used the cable that I got from the box, and I used it with the adapter that I already had (this adapter works fine on my other devices) every time I want to charge my iPhone 15, it comes on and off charger every time it goes up by 1% and it keeps making that sound as if I just put it on the charger. It's a brand new phone and cable and it's driving me nuts. Does anyone have a solution for this?

36 replies

Mar 4, 2024 1:14 PM in response to em_240

For those still searching and trying to understand the issue it has to do with the type of cable and Power Delivery (PD). For those of us using genuine Apple Cable and Adapter this shouldn’t be an issue. 20W Adapter to be specific.


Where I notice the issue the most is when I’m using an Anker Power 240W Multi Charger (20W Port) and an Anker cable I get the on/off charging. I suspect that as it ramps up the charge it looses capacity and resets. This does not occur with an Apple Cable plugged in the same way.


Just to prove it was the cable, with that specific charger I used a 140W Apple Charger and the Anker USB-C Cable and it worked.


Which means that some cables and chargers don’t have the same power that others do. You might need to get a cable rated for 20W.

Jan 19, 2024 8:26 AM in response to em_240

Update,

For some reason with another brand new 20w power adapter it doesn't behave like this. No more repeating notifications. I already tried before a new adapter exactly the same as this. Only difference between them is that one is from an Apple Premium Reseller (charger with the paper foil on it). The other one is from another electronics shop. Don’t get me wrong, both are supposed to be produced by apple. Same identical box, same inscriptions. I don’t know what’s causing this.

it doesn’t make any sense.

After charging it once with the new adapter, the old adapter was also working fine.

I suspect there is some kind of machine learning/NLP trying to learn and adapt the charging power that fails sometimes and results into these power interruptions and charging notifications.


Try a few other new chargers until

it works and blame apple.




May 10, 2024 8:56 AM in response to em_240

9/10 it’s a software glitch. Sometimes when “Charging optimization”, under Settings > Battery > Charging optimization, is turned OFF it charges normally, but sometimes it doesn’t, thus going on/off/on charge. I believe we gotta wait a patch or iOS 18. I personally have it capped at 80% limit, but going on and off charge can damage the battery in the long run. Hope it helps.

May 27, 2024 11:50 AM in response to em_240

I'm experiencing the same exact issue on my iPhone 15 Pro. I use:


  1. Original 20W Apple Charger.
  2. Original out of the box USB-C cable


The phone is brand new , 3 weeks old. It worked fine the first 3 weeks , no issues at all but the previous night the issues started. I didn't do any updates or anything out of ordinary with the phone. It happened with iOS 17.4 and i updated to 17.5.1 (latest) and the issue persist.


  • The "affected" charger works with other iPhones and Apple Watch so the charger cannot be faulty.
  • Using "affected" charger with wireless charging dock works with iPhone 15 Pro.
  • Using different original 20W charger and same cable works with iPhone 15 Pro.
  • Using Macbook original 30W charger and same cable works with iPhone 15 Pro.


The only solution is to buy a new charger but I don't want to do it. I already bought the charger. Also who guarantees that the same issue won't happen again with new charger?


Apple can you please look into the issue? There are many reports on this so it seems something must be going on. Thanks!

Mar 24, 2024 10:44 PM in response to em_240

Same thing happening on my iPhone 15 plus. Ever since the first day I bought it, took it out the box and charged it the charging notification keeps going on and off. I even took it back to the store I bought it from, but at the store it charged just fine. I have tried charging it at all charging points in my home. Please fix this!

May 9, 2024 1:10 PM in response to em_240

Mine has been doing this and it’s driving me mad! It happens on every iPhone I get (I get the latest every year) around the same time. Be sure to check your charging port is not clogged up with pocket dust as this will stop the charger sitting in flush within the port (you will be surprised how much gets clogged up in there)


im not a fan of USB-C and never was! It’s even more susceptible to clogging up with pocket dust due to the usb C ‘nib’ that sticks out within the port


I think alot of it is due to weak cables and poor charging ports (pretty evident as you have to wiggle and position the cable at a specific angle to get it charging again)

May 29, 2024 12:41 AM in response to em_240

This was happening to me but I was using an off brand plug adapter with a usb and usb-c dual port. I had cables plugged into both, and the iPhone to the usb-c kept disconnecting and reconnecting to the charge. I finally removed the other cable (the usb) and the usb-c cable charge for my iPhone worked fine! It was an issue with sharing power perhaps.

iPhone 15 keeps coming on and off charge

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