Slow wireless charging after iOS 15 update

my 12 mini is charging fine on a magsafe charger but when it reaches 100% between midnight and 2am it then stops charging all together and steadily drops. I hadn’t looked at my phone until I got to work yesterday and the battery level had dropped to around 50% because according to the battery app it reached full charge at about midnight so had dropped significantly by 8am.

Doubtful - nothing gets even warm here. Not the phone, not the charger.

IF it's charging (now 1 mm in position change can make the difference! - it used to be almost irrelevant where I placed the phone on the charger), I don't even get a full charge overnight. Last night it went from about 60 to 80 % midnight to 7 a.m.

It used to charge from empty to full in 2 h!

Apple needs to fix this.

I had the same problem. Someone wrote here, that since the update the iPhone only supports wireless charging at 7.5W or higher. I did some further research, and this was the solution. My wireless charger (generally capable of charging at 9W) was connected to an insufficient USB power supply that was not capable to provide enough power for a minimum 7.5W.

I replaced my wireless charger's USB power supply to a current model, and now everything is ok.

In Details: I am using the Samsung EP-PG950 wireless charger, that is able to charge the connected phone in standard mode using 5 V/1A, or in fast mode using 9V/1A. When using fast mode, according to the user manual the charger needs USB power supply at 9V up to a current of 1,67A. If the iPhone only accepts charging mode of 7.5W or higher, it will not accept the standard mode of this charger, but only the fast mode. The Samsung EP-PG950 is delivered without power supply, you have to buy it separately. I've had connected it to a cheap USB multiport charger that can supply up to 2.1A, but only at 5V. As the wireless charger needs 9V for it's fast mode and the standard mode is less than 7.5W, this is predetermined to fail.

Of course this is annoying. I don't need fast charging as I use the wireless charger only overnight and had to spend money for a new USB charger and in addition to that for a new cable, as current fast chargers use USB C output. But it was the solution to the wireless charging problem.

I have an iPhone SE 2020 with the Apple MagSafe charger. I put it on the charger last night at about 8:00 p.m., and when I woke up this morning at 5:30, it was only at 56%. Previous to this, it had always charged to 100%. My phone does have an Otterbox case on it, but it's never been an issue before. I'm thinking this is a software (iOS) issue rather than hardware.

And, let me guess, you are using the charger that was delivered with your iPhone SE as power supply for the magsafe charger? This will not work, as this charger only provides 5 Watts. You must use a 20W (minimum!) USB-C power supply for the magsafe, you have to buy separately. Read my previous post.

I bought an iphone 11 from Verizon along with a wireless charging pad about four months ago. It worked well enough meaning it charged overnight successfully. Suddenly, however, it now charges exceedingly slowly, sometimes not reaching full charge at all and often reaching only fifty percent after 8 hours.

After update to 15.3, my phone does not wirelessly charge past 68% on the charger. This had never been a problem prior to the update and remains a problem across various wireless chargers. It charges fine through the cable.

There is no discernible increase in temperature either to suggest it is overheating and that's why it's stopping. Also, if that were the cause, wouldn't it stop, cool down, and then restart charging again?

Hello living_teal,

It might be a good idea to contact Apple Support or have your iPhone and charger checked out by a technician to help determine the cause.

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Take care!

Hi

I have the same issue

my Xs Max phone barely reaches 68% charge through a wireless charger.

there is no issue with the wired charging mechanism.

The issue started post IOS 15 update

Regards

I’ve had the same issue since updated to iOS 15. Ever since, my phone struggles to charge through any wireless device and won’t hold charge. No issues whatsoever prior to updating.

My phone and Apple charging cord were fine before the update. It’s not the cord or debris or anything other than an Apple related issue.

I have the same issue with iPhone XR and Blitzwolf wireless charge.

Same problem here: iPhone X and mophie 409903633 charger. Worked fine just before upgrading iOS. A similar problem occurred with a previous iOS big-number update.

Hi,

I have an 11pro max and recently upgraded to IOS 15.0.1 and since two days ago my phone charges at a rate of 2% per hour with a cord. I don’t understand why… any tips?

Updated to 15.1...still having wireless charging problems. Super sensitive to placement, some wireless chargers that worked fine before don't work anymore. On 2 x XR and 2 x 13 phones