Extreme Battery drain in AP mode

[gnexcm11]

Just got a GNex and the battery is draining insanely fast without the phone being used. The phone is placed in airplane mode and is not used and the battery at best lasts only 20hours. Every gps wifi and network connection is turned off. This is all happening with less than 5 minutes of screen use. Phone is running CM11 but the same problem was occurring with the stock 4.3 rom and i have also tried cm10.

Any ideas as to why its draining so fast? I already bought another battery and its only slightly better. This is pretty ridiculous considering the phone in AP mode and in deep sleep and its not being used at all.

Pictures here: imgur: the simple image sharer