Use APKPure App
Get Full Battery Charge Alarm old version APK for Android
It will be notified by music when the battery has a full charge.
You can use music of your choice for the notification.
[How to use]
1. Set the reminder song.
2. Connect the charging cable.
3. When charging is completed, music of your choice will be played.
[Troubleshooting]
If the app does not work, refer to the link below.
https://ddolcatmaster.tistory.com/187