Since iOS 18 from September to November, I get calls from clients who got new iPhones and who want me to fix their “Slow Charger” issue. As in they either plug their phone in or drop it on a wireless charger and they get the message “Slow Charger” pop up on their lock screen.
I am here to tell you that this is not a problem. Here’s why.
First, your phone is still charging. It’s just charging slowly. Why is that the case? well, if your wireless charger is less than 10W or your wired charger is less than 7.5W, Apple considers that to be “slow.” And that you can charge faster if you had a “faster” charger. You will typically see this if:
- Your charging brick is wired and USB-A. The fix is to go to a USB-C charger and cable.
- Your cable is not a good quality USB-C cable. In which case get a better quality cable.
- Your wireless charger is less than 10W. That means you need to upgrade your charger to something faster.
I have also found that shared power adapters cause this issue. By shared I mean that a power adapter is 20W, but it only puts 7.5W or less to the iPhone for example. And I have found that Non–Power Delivery (PD) adapters or uncertified third‑party chargers cause this issue as well. The fix for these are to have either a dedicated charger or a higher wattage shared power adapter, or have a certified charger that does PD.
The key message is that this message is informational, not a sign of damage. It simply indicates that your iPhone could charge faster with a better charger.
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This entry was posted on November 10, 2026 at 2:55 pm and is filed under Commentary with tags Apple. You can follow any responses to this entry through the RSS 2.0 feed.
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Your iPhone Saying “Slow Charger” Is NOT A Problem
Since iOS 18 from September to November, I get calls from clients who got new iPhones and who want me to fix their “Slow Charger” issue. As in they either plug their phone in or drop it on a wireless charger and they get the message “Slow Charger” pop up on their lock screen.
I am here to tell you that this is not a problem. Here’s why.
First, your phone is still charging. It’s just charging slowly. Why is that the case? well, if your wireless charger is less than 10W or your wired charger is less than 7.5W, Apple considers that to be “slow.” And that you can charge faster if you had a “faster” charger. You will typically see this if:
I have also found that shared power adapters cause this issue. By shared I mean that a power adapter is 20W, but it only puts 7.5W or less to the iPhone for example. And I have found that Non–Power Delivery (PD) adapters or uncertified third‑party chargers cause this issue as well. The fix for these are to have either a dedicated charger or a higher wattage shared power adapter, or have a certified charger that does PD.
The key message is that this message is informational, not a sign of damage. It simply indicates that your iPhone could charge faster with a better charger.
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This entry was posted on November 10, 2026 at 2:55 pm and is filed under Commentary with tags Apple. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.