Unexpected battery drain when idle (Samasung Galaxy Note 5)

I am having issues with battery drain and not sure what to do, my note will lose about 30% battery overnight(about 7-8 hours) and last night it lost about 50%. At first it said that google app used a lot of battery so I disabled the recommended things online (it's location and such), now it isn't draining as much. Also my location doesn't use GPS, at night I always have maximum reception and yet I lose a lot of battery to cell reception, also the other 2 you can see in the picture. Hope someone can help, and thank you!