Indeed, I have used this option often and none of the apps ever listed seem to be hitting the battery too hard.
On another note, though, I recently contacted [AT&T] regarding the lack of LTE service on my device and following the the AT&T tech(s) performing their mojo-magics on their end as well as the network restarts on my end, the battery life has been phenomenally better. After returning home from work today, i find that my iPhone 6 is sitting w/a charge of 92% after a typical day of on-the-go usage as apposed to the 30-40% remaining after the same conditions. Massive improvement.
Dare I say that the issue was possible tied to an AT&T network issue? Something that was constantly causing the phone to use network access for something?
I will continue to monitor.
