My J7 drains my battery SO MUCH even when i power it off

[GalaxySpacez]

After fully charged i left my phone for one night and i couldn't power it on and i charge it and i said 0%even though i have replace a battery. What happened to my phone pls someone help me!

 

[B. Diddy]

Welcome to Android Central! Can you clarify -- are you completely shutting the phone off overnight, or just turning the screen off? Where did you get the replacement battery from?