How to save my battery

Hello erdi272,

1. Open Settings
2. Scroll down and tap on Battery

This will show you everything related to your battery including what is contributing to it draining. You'll either want to use those apps less and/or turn off background app refreshes.

If you tap on Battery Health & Charging, you can see the Maximum Capacity, in other words your battery's health. From what I've seen others say on these forums, Apple recommends replacing or getting a new device when this drops below 80%. Optimized Battery Charging should also be toggled on.

If you want to learn more about batteries and a lot more ways to maximize the performance of them, please refer to:

1. Batteries - Apple
2. Batteries - Maximizing Performance - Apple

I hope this helps!