The best alternatives to Smart Battery Monitoring are Indiegogo, Battery Indicator, and Greenify. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Smart Battery Monitoring?
AssemblyAI— Speech-to-Text API with superhuman accuracy
Greenify help you identify and put the misbehaving apps into hibernation when you are not actively using them, to stop them from lagging your device or leeching the battery, in a unique way! They can do nothing without explicit launch by you or other apps, while still preserving full functionality when running in foreground.