Hot Take Optimised Battery Charging limits iPhone 15 models to 80% charge


Thread author
Staff Member
Jan 8, 2011
All iPhone 15 and iPhone 15 Pro models feature a new battery health setting that when enabled prevents the devices from charging beyond 80% at all times.

The new setting is separate from the pre-existing Optimized Battery Charging feature on iPhones, which intelligently delays charging past 80% until a more appropriate time by learning the device's daily charging routine. When the 80% hard limit is enabled, the iPhone will never charge past that point whatsoever.
Via iPhone 15 Models Feature New Setting to Strictly Prevent Charging Beyond 80%

About 80% Limit with iPhone 15 models​

With iPhone 15 models, you can choose between Optimized Battery Charging, 80% Limit, and None.

When you choose 80% Limit, your iPhone will charge up to about 80 percent and then stop charging. If the battery charge level gets down to 75 percent, charging will resume until your battery charge level reaches about 80 percent again.

With 80% Limit enabled, your iPhone will occasionally charge to 100 percent to maintain accurate battery state-of-charge estimates.
If you want to change your charging option:
  • With iPhone 15 models, to choose between Optimized Battery Charging, 80% Limit, and None, go to Settings > Battery > Battery Health & Charging > Charging Optimization and choose an option.
Learn more: About Optimized Battery Charging on your iPhone


Level 38
Top Poster
Apr 1, 2019
So…get less use out of a device to begin with so you can minimally increase its useable life. Basically using it as if you were starting 2 years into the battery’s life cycle.

Sent from iPhone 15 pro at 100%.


Level 26
Top Poster
Aug 17, 2017
The launch of the Apple iPhone 15 and its series was met with excitement and anticipation, as is typical for any new Apple release. These devices promised significant improvements and an array of new features. However, not all users have been entirely satisfied. Some iPhone 15 and iPhone 15 Pro users have voiced concerns about overheating problems, sparking discussions on social media platforms.One curious X user, Jonathan Newburg, decided to go deep into the iPhone 15 overheating problem and found out this:

Over the past few days, complaints about iPhone 15 overheating issues have emerged from various users. These concerns have been voiced on platforms like Apple discussion groups on Reddit, and other online forums.


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