MY BATTAERY'S HEALTH IS DEGRADED

Apple can replace your iPhone battery for a service fee. Their warranty doesn't cover batteries that wear down from normal use. Your iPhone is eligible for a ...

iPhone Battery Repair & Replacement

Batteries degrade over time with usage due to chemical aging, that's just how they work.

You can expect about a 1% drop per month with average use on an iPhone.

Apple recommends replacing it when it reaches 80%. To check your battery health, go to Settings > Battery > Battery Health.

iPhone Battery Replacement.

iPhone Battery Repair & Replacement - Apple Support

About Lithium Ion Batteries

iPhone Battery and Performance - Apple Support (IN)

Here are some tips on maximizing battery life.

Batteries - Maximizing Performance - Apple Batteries - Maximizing Performance - Apple