Use APKPure App
Get Battery Master old version APK for Android
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Battery Master is an application that shows you whether your mobile is charging or not. It shows the mode of battery charging i:e via A/C charger , via USB or via Wireless. Also its shows all the battery Information such as the Battery support in watts and what it is made up of.
This app also lists all the applications that are installed and running on the mobile device.
You can also check the current system timing in this app.