I just got a used D850 from a friend. It seems like it drains batteries faster than any camera I have owned just from being left on.
No shooting no looking at the LCD. Battery is brand new EN-EL15C. Airplane mode ON.
I charged the battery to 100% and in 2 hours it's down to 70%. Is that normal? I think in 4 or 5 hours it would be dead.
It doesn't seem like the shutter drains a lot. In other words I could blast off a lot of shots in a short period of time and that would not drain the shutter as much as just being left on for a couple hours doing nothing.
I just took it to a reputable repair place for cleaning and to fix something. He didn't seem to think that was abnormal.
