How do I fix 'slow charger' issue with non-Apple cord after iOS update?

Question

Level 1

24 points

How do I fix 'slow charger' issue with non-Apple cord after iOS update?

i have been using the same non-apple charging cord for the last 2 years. immediately after the latest ios update a few days ago, it wont charge my phone beyond 60%, and after an entire night of charging it only 52%. My battery capacity is 82% ….it shows as “slow charger”. The only thing that has changed is the ios update…and YES i did turn off the “optimized battery charging”

[Re-Titled by Moderator]

Original Title: ios update causing issue

Posted on Feb 4, 2026 2:24 PM

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Answer 1

Jeff Donald

Level 8

45,822 points

Feb 4, 2026 2:28 PM in response to Njm0627

Try another cable. Internal wires do degrade and or break over time and with use. It’s also possible battery is experiencing an internal failure.

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Answer 2

Feb 4, 2026 3:09 PM in response to Njm0627

Njm0627 wrote:

problem was immediate upon ios update the other day…..its the update, not the phone…

If it was the update, everyone would be reporting charging issues, but they're not. Jeff gave you the right advice. Try a new cable.

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Answer 3

Katana-San

Level 10

81,751 points

Feb 4, 2026 4:27 PM in response to Njm0627

Hello~ As already suggested…try a different cable. Also…

About iPhone charge speeds - Apple Support

Also have you restarted your iPhone?

Restart your iPhone - Apple Support

~Katana-San~

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Answer 4

Kurtosis12

Level 9

76,714 points

Feb 4, 2026 3:39 PM in response to Njm0627

My battery capacity is 82%

That is pretty close to the 80% limit that Apple recommends replacing the battery at. Your battery may be failing.

Batteries degrade over time with usage due to chemical aging.

You can expect about a 1% drop per 50 charging cycles (25 charging cycles for IPhone 14 and older) with average use on an iPhone. This is an approximation, that is why it may be plus or minus a few percent on a month to month basis.

Apple recommends replacing it when it reaches 80%.

iPhone Battery Replacement.

https://support.apple.com/iphone/repair/service/battery-power

About Lithium Ion Batteries

https://support.apple.com/en-in/HT208387

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Answer 5

Njm0627 Author

Level 1

24 points

Feb 4, 2026 3:24 PM in response to lobsterghost1

pretty big coincidence that it happened the very minute i did the update. i just plugged in with the Apple charger that it came with and it charges fine. I prefer the newer type cables that are magnetic and i dont believe all 3 i have could have all failed at same time. i guess it’s just apple making sure that we all use only their “accessories “

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Answer 6

Njm0627 Author

Level 1

24 points

Feb 4, 2026 3:01 PM in response to Jeff Donald

problem was immediate upon ios update the other day…..its the update, not the phone…

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Answer 7

Jeff Donald

Level 8

45,822 points

Feb 4, 2026 3:37 PM in response to Njm0627

So, you were charging your battery during an update? Is that correct?

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Answer 8

Njm0627 Author

Level 1

24 points

Feb 4, 2026 5:19 PM in response to Jeff Donald

according to apple, the phone must plugged in and already have sufficient charge in order for the update to occur. so yes, it was plugged in when i manually started the update.

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