To get the most life from your battery:
Use Battery Saver mode to keep going on a low battery.
Also, avoid these battery-intensive activities until you can charge:
To see if a specific app or service is draining your battery:
You can also see what phone features are using your battery.
To ensure that apps use your battery only when they need to, keep battery optimisation on for all apps.
When battery optimisation is on, Android monitors how much battery the apps use and minimises their battery usage when:
To check that battery optimisation is on:
If an app is listed as Not optimised:
Touch Optimise > Done.