New iPhone 15 Battery Features Address iPhone 14 Complaints

iPhone 15 has a new optimized battery charging feature that limits charging to 80% to extend battery lifespan.
iPhone 15 displays manufacturing date, usage time, and cycle count to better indicate battery health.
These features address complaints about unexpected battery degradation in iPhone 14 models.
The 80% charge limit aims to reduce capacity loss from constantly charging to 100%.
It's unclear if Apple will bring the new battery health features to older iPhones.