Use APKPure App
Get Battery Booster PRO old version APK for Android
Simplest and a easy way to Conserve the Battery Usage Apps
Battery Booster Pro is the simplest and easiest way to keep your Android phone working well when you need it, and protect against poor charging, battery hogging apps, and overlooked device settings that shorten your battery life.
# Fast Charge Option
# Increase Battery Life
# Optimal Battery USE Feature
# Multi Power Saving Mode
# On/Off Switch , Easy to switch the mode
and Much More