I know battery is often an issue for everyone, but especially those of us who rely heavily on our phones for every day tasks, and I often find myself using the low power mode function introduced in IOS9 to extend my battery life. Considering it doesn't seem to have an effect on performance, for me at least, I thought, why not keep it on all the time.
Of course, those of you who have tried it know that it is automatically disabled when your device has been charged to 80 %. Because I'm lazy I decided to try and find a way to avoid, you know, pressing a button, so instead spent half an hour researching and building a shortcut... Go figure.
I managed to find a guide to produce a shortcut automation to do just this. Rather than rewrite all of it here I've decided to simply include the link.
I hope this is of help. Let me know how you get on and if there is any noticeable increase in your battery life.
PS, moderators, let me know if this is the wrong place to post external guides and I'll rectify it.