MOTO E battery drops suddenly to 0%
OK - This issue is still happening.
I hope, since your phone was new and under warranty, that you took it back to get a new one.

There are people still experiencing this same thing. It is being discussed in the Levono/Motorola forums.

https://forums.lenovo.com/t5/MOTO-E-2nd-Gen/Moto-E-2nd-sudden-battery-drain-and-power-off/m-p/3862539#M4467

The solution presented by a Motorola Agent was to plug the phone in to a wall charging unit, let it charge to 100%, and then keep charging it for awhile. This seems to have worked for me. My phone is about 2 years old. So, I can't take it back for an exchange.

But, another user isn't as lucky as me. So, any addition information or solution suggestions would be helpful here or on that other forum.