Who I have the same questioned this topic

for shortness of time i copied the below issue for anther unfortunate Droid Turbo 2 owner as my phone is doing exactly the same thing and has been for since the last update. What is the fix? Is Verizon trying to fix it, Is Motorola trying to fix it. Or do they just don't care and we are left out in the cold. 

My phone will randomly shut off anywhere from 30-15% battery life left. Sometimes it happens when opening or performing an action in an app, sometimes it's when I wake up the screen to use the phone. Sometimes it shuts down and I can reboot and it keeps going, other times it shuts down and blinks the drained battery image at me and will not reboot until I plug it in. When I plug it back in, it goes back to 20+% battery life immediately. I use 2 chargers, a verizon car charger during the day when needed and and the OEM turbo charger at night. I used to be able to go a full day without charging, now I am lucky if I make it through lunch.