If your smartphone is always covered with your mobile case and even while charging your smartphone then probably this is the one issue that is limiting your phone’s charging speed.
1. Remove Cover
Whenever you are charging your phone make sure to turn off all the additional services like Wi-Fi, Location, Auto-rotate, and auto-brightness. These are the main causes why your smartphone is charging slowly.
2. No Additional Things
To Make Android fast charge, get into the safe mode on your Android device. Then charge the smartphone. Because while you are in safe mode all the apps have been automatically turned off. You can’t use them even if apps can’t run automatically and that can save your smartphone’s battery