My iPhone's battery is fading faster than Apple promised, despite my best efforts

Jason Hiner/ZDNET Apple claims that the batteries shipped inside the iPhone 15 and later models are designed to retain 80% of their original capacity after 1,000 complete charge cycles "under ideal conditions." When I acquired my iPhone 15 Pro Max, I decided to put this claim to the test. This smartphone was first used in March 2024 and has been my daily driver ever since. I have taken every possible measure to care for the battery: I have permanently set the charging limit to 80% (Settings > Battery > Charging), avoided keeping the handset on charge for excessively long periods, and ensured it remains away from extreme temperatures. How has it been performing? Not great. Also: iOS 18.4 update draining your iPhone's battery? Try these 6 fixes In a little over 12 months and 355 recharge cycles -- approximately once a day, which is quite a high amount of usage -- the maximum capacity has dropped to 91%. My iPhone battery after just over 12 months of use. Adrian Kingsley-Hughes/ZDN ... Read full article.