Hello I have my iPhone 7 and I replaced the battery from apple and went to 100 after5 days it went to 98 also I went to turn on optimization on settings is this normal or something bad I was worried also my don’t even reach 35c• of temperature because our room is cold can someone explain??
[Re-Titled by Moderator]
iPhone 7, iOS 15
Basically the critical point is when it drops to 80% health. If this does this before one year then it is covered by warranty. If not then it is considered standard. What it does in the rest of that year isn't really important. The process isn't linear.
Read this support article about iPhone battery and performance to learn about the battery health feature and what is considered normal performance --> iPhone Battery and Performance - Apple Support
To see the feature go to: Settings > Battery > Battery Health
"A normal battery is designed to retain up to 80% of its original capacity at 500 complete charge cycles when operating under normal conditions. The one-year warranty includes service coverage for a defective battery. If it is out of warranty, Apple offers battery service for a charge." A degraded battery may display the notice: "Your battery’s health is significantly degraded. An Apple Authorized Service Provider can replace the battery to restore full performance and capacity." If it is not at or above 80% "normal", consider contacting Apple about a battery replacement. --> iPhone Battery Replacement - Apple Support
How to Optimize Battery Settings on iPhone 7 for longer life?
