I'm actually kind of surprised how much the feature saved in terms of battery life on average...I would have guessed 20-25%, but the thing (at least in this situation) is saving almost 40% battery life on average over several days! Seems to be a lot smarter than the similar Android functionality that simply turns everything off but the basic phone/text pieces...
What If You Used iOS 9's Low Power Mode all the Time? ? BirchTree
What If You Used iOS 9's Low Power Mode all the Time? ? BirchTree