Wow.. After all this time.. My battery is now 1% draining every 5 1/2 mins on LTE. About the same for 4G. This is with TONS of compromise. A fix, it is NOT but I need my battery to last so I was willing to do what I needed to in the meantime to make that possible.
My screen brightness is very low
Safari is restricted with all data deleted. I use chrome
I deleted the Facebook app. I use it on chrome.
I have my mail set to hourly.
I do not have iCloud at ALL. I manually set up my email. I synched my contacts from iTunes.
No Siri
Everything else ... Bare minimum.
Basically, I am completely not using the amazing features on this phone but for my life and for what I do, thatll have to be okay for the time being. The battery lasting is much more important.
I personally believe that safari is responsible for this. I believe that once opened, something goes on in the backround and does NOT stop even when the app is closed. I don't know for sure obviously but all I know is with safari and Facebook gone off of my phone... Its completely not draining the way it was at ALL. If your desperate, give it a try! After you delete safari and Facebook do a hard reset. Charge the phone all the way up. Let it get down to like 5% and charge it fully up again. Power off / on the phone. And here I am. Ciao guys! I hope you all find temporary solutions that work for you!