My MOTO E815 last at least 7 days without use, and 3-4 days with use, and that's with bluetooth on.

Here is a review on your phone from cnet.

Here is a quote from the review:

"The Motorola Krzr K1m has a rated talk time of 4.2 hours and a promised standby time of 18 days. In our tests, we managed to get a talk time of 4 hours and 16 minutes. According to FCC radiation tests the Krzr K1m has a digital SAR rating of 1.03 watts per kilogram."

It sounds to me like you have a justified battery issue. I assume you still have Verizon . I would take it to a Verizon store and complain about the issue, and see what they can do about it.