I ignored Apple's battery advice for months - here's how my iPhone 17 Pro Max performs now

The author tests aggressive, varied charging habits on an iPhone 17 Pro Max over 140 days and 122 cycles—disabling optimized charging and limits, using mixed wired/wireless chargers in extreme temperatures, and keeping the phone in a thick case—yet the device still reports 100% battery health, which the author attributes to modern battery management and the gap between rated and actual capacity. They note that meaningful decline often begins once actual capacity falls below rated capacity, estimating about 1% loss per ~50 cycles, and conclude that while Apple’s battery features can help marginally, the real-world impact appears small, so they will continue charging “the wrong way.”