I just used towelroot for my LG G2 4.4.2
It works like a charm. Then I installed supersu and titanium backup. After a %100 charge the phone lost his %35 battery in sleep mode. Nothing happened because I was sleeping also. I installed wakelock detector and as I saw supersu wakes the screen. Uninstalled but the battery drain issue continues.
I just rooted my phone because of the camera issue (low light frame rate etc..)
Any help? I will hard reset the phone right now to see the difference.