Android OS draining battery

The same is happening to me. It has been happening since I bought the phone a year ago. Nothing really seems to help. That's why I plan to sell the phone for either a Moto X Play or a Pixel XL.
 
Why do you ask about Oculus Services? Is there an issue with the recent update? I'm running into major battery drain today and noticed an Oculus update yesterday when I got home
 
Me too! The latest system webview is drinking battery. I'm losing 20% while carrying it in my back pocket walking from the parking lot. It went to less than 30% in less than 5 hours while doing nothing more but sitting face down on my desk.
 
Mine has been doing this forever and finally it's only at 5% usage now. Go in to notifications and turn off everything except what you really want. This is the only thing i did and it seems to have fixed the drain.
 
Hello. Android OS has been draining my battery like crazy, any solutions? View attachment 241054

This happened to me in the past couple of days all of a sudden. First thing you should do is identify the apps that you may have installed recently or any changes you've made w. r. t settings. This is the hard part. But once done, wipe your cache from recovery. That should do it.

GSam battery stats should give you some insights.

I know it's frustrating but be patient and you'll be able to resolve it.