Battery

[Tcbemis]

Any thoughts? I literally got up, took it off silent mode and.... 88% right now typing this.
My going theory is that when I get up, it's sitting in the bathroom where there isn't much signal while I shower. Maybe??

I did a factory reset after Oreo, but this battery is honestly getting worse and worse.

 

[sitlet]

That, or the phone doesn't keep the charge at 100 percent. My old phone would drop down to 80 percent before it charged back to 100.