iPhone 16 battery draining too quickly
i recently got my new iphone 16 but on the first 3 day my battery easily drains, like in 2hrs from 100% to 85% ? my OIS is 18.2
[Re-Titled by Moderator]
iPhone 11, iOS 18
i recently got my new iphone 16 but on the first 3 day my battery easily drains, like in 2hrs from 100% to 85% ? my OIS is 18.2
[Re-Titled by Moderator]
iPhone 11, iOS 18
The measure of battery health deterioration/drainage is subjective and can vary depending on individual usage patterns. There is no universal standard to determine whether the battery health deterioration/drainage is normal or abnormal because it heavily relies on how the battery is used and maintained.

Protect & Prolong the Life of your iPhone's Battery:


Try to monitor Battery usage by iPhone Activity as shown below
What is shown under battery usage? Checking that would give you an indication of the usage behavior.
See the pic below (iPhone 12 Pro iOS 17.3.1)
"Show Activity" feature will show you more info see the pic below


Try some of these options too.
To prolong the life of your iPhone battery, you can follow these tips and best practices:
To prolong the life of your iPhone battery, you can follow these tips and best practices:
Here are a couple of articles by Apple that may interest you:
About battery usage on your iPhone or iPad - Apple Support
Batteries - Maximizing Performance - Apple
iPhone battery and performance - Apple Support
iPhone 16 battery draining too quickly