To the OP, your battery is draining quickly at night probably because of the poor signal at home. Always trying to search for better signal.
Posted via the Android Central App with my Badass Galaxy S7
I know. A residual issue of WiFi Calling being unavailable. As I mentioned, it doesn't happen with the other phones I own on which WiFi Calling IS available. It's a moot point now anyway, as I've returned it. Unlocked = Handicapped on Verizon.