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Khuzzu
User level: Level 1 (4 points)

Charge won't cross 80% in iphone 16 plus

Hi, my iPhone 16 Plus won't charge past 80%. My battery health is at 97% with 527 cycles. I've already tried setting the charge limit to 100%, turning off Optimized Battery Charging, hard resetting, changing location settings, checking device temperature (it feels normal), and even doing a full factory reset. None of this has fixed the issue. Any idea what might be going on or how to fix it?

Posted on Oct 30, 2026 1:19 PM

3 replies

Bob Timmons
User level: Level 10 (199,348 points)

Oct 30, 2026 2:06 PM in response to Khuzzu

My battery health is at 97% with 527 cycles.


Things are not adding up. The battery is expected to decline at about 1% for every 50 Charge Cycles, so the Battery Health should be in the 89-90% range at this point.


You have a "one of a kind" battery if the displayed numbers are correct......which I doubt.


Apple Support......Support......can usually run a remote diagnostic check on the battery, but it would be better if you could take the phone in to the Apple Store / Genius Bar or an Authorized Apple Service Provider (AASP).


You can find a list of authorized shops in your area using this link:


Find Locations


Keep us posted on things, please.





Lawrence Finch
User level: Level 10 (244,490 points)

Oct 30, 2026 1:33 PM in response to Khuzzu

That doesn’t make sense. With 527 cycles your maximum capacity should be around 89%.


If you are fast charging it will pause at 80%, then resume when the battery cools down (as much as an hour later).

Jeff Donald
User level: Level 9 (64,078 points)

Oct 30, 2026 1:24 PM in response to Khuzzu

Hi, what iOS version are you using? Are you up to date with the latest compatibile version? What’s your battery health percentage?

Originally posted at discussions.apple.com/thread/256386097