Pixel 2 battery drain

[10OutOf10WillRIPAgain]

Hi all, I'm currently using a Google pixel 2 (non XL version) and it seems like my battery is draining extra quickly. Using accubattery to check the drainage, it's around 15-18% an hour screen on time using only apps like twitter, WhatsApp, 9gag, no games that will drain the battery. But the alarming thing is the screen off drain. it's hitting 1.2-1.5% an hour at night while sleeping, with ram cleared (mobile signal on, WiFi on, 1 alarm, Bluetooth off). How can I fix this? It's very frustrating to see my phone drain 8 to 15% of battery depending on how long I sleep? Thanks

 

[10OutOf10WillRIPAgain]

And btw, I turned off the always on display

 

[Nevereatrice]

Clear the dalvik cache or reset the phone