Severe battery drain since update to 8.1.2

My iPad Air is seriously losing battery when standing idle. At first I thought I had forgotten to re-charge it so I started monitoring it. Since the update it has lost over 85% of battery charge overnight when not being used. I have looked in the battery usage section and it seems that the Home and Lock screen is the culprit with 88% usage in the "Last 24 hours". It charges up okay but when I go to use it it is always dead in the mornings. How is it that the Home and Lock Screen is the culprit and what can I do to correct it. I have all the usual culprits turned off, i.e. Bluetooth, Notifications etc. In fact I have so many things turned off I wonder if it's worth having this iPad.

Also when I do go to use it I can see my battery indicator go down each time I do something with it. I unplugged phone last night before going to bed (100%) so it would not be plugged in overnight and now I wake up and see it at 90%. So I suspect something wrong. My App Background is set to off as it has been for quite sometime so no apps refresh for me in background or so I thought. Now after the 8.1 update my battery life *****!!!!As where before I could go like 5 to 6 days before charging now it is like 2 to 3 days before I need to charge up again. With all the tips and tricks I have implemented none now work on my phone. Someone if can help please do. I need to find a resolution.
When in Battery Usage screen mine right now says Usage 8 minutes, Standby 13 minutes. Nothing in Last 24 hours and Last 7 days Home & Lock screen 25% and Settings 23% then the other areas less then that so the top things that are eating my battery are within the home and lock screen and settings screen?
When I did a reset by using the home and power buttons for 10 seconds it acted funny. Showed No service then showed my provider them no 4G, LTE and no wifi symbols then it come back up.then when i go back to battery usage it has nothing there to read dashes at usage and standby, last 24 nothing last 7home lock screen 27%, settings 23%

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