Default anyone experiencing this???

i have not had any issues with my phone battery life until about a week or 2 ago. i used to get around 7 hours screen on time at 80% brightness. i have nothing different installed on my phone from the day i got it, a few apps. i have been getting about 2-2.5 hours screen on time. anyone else noticing a major battery drain recently on their flex?
AT&T LG G2(Black)-SOLD
AT&T LG G-Flex-completely stock
"Its not the device....its operator error."