Do you need a way to conserve power when your phone battery gets to a level of 20 percent or below?
Do you need a partial charge and not a full charge of your battery?
BattSave may be the tool you need.
When you run the shortcut and your battery level is below 20 percent, it will run a couple of battery saving actions.
When you run the shortcut and your battery is above or has charged up to 50 percent, you get a prompt that you are good to go.