Battery Life & Health Tool - Apps on Google Play

Ultimate Battery Life Checker! Calibrate the battery with one click!

Battery Health Checker - Apps on Google Play

10 Tips to Boost Your Android Phone's Battery Life

Battery Life & Health Monitor - Apps on Google Play

Battery Life & Health Tool - Apps on Google Play

8 Tips to Maximize Your Smartphone Battery Life

Accu​Battery - Apps on Google Play

Accu​Battery - Apps on Google Play

Accu​Battery - Apps on Google Play

Here's how to check battery status/health on your Samsung Galaxy device - SamMobile

Battery Doctor, Battery Life - Apps on Google Play

Battery Guru: Battery Alarm - Apps on Google Play

How to Check AirPods Battery Levels on an Android Phone

Battery Guru: Battery Alarm - Apps on Google Play

In-app updates Android Developers

Ampere - Apps on Google Play