Think that must be the reason for mine
I downloaded go go gadget and never realised it was in my notification center...does that affect battery life even if you don't get any notifications from that app?
I don't know about that. I thought they only ran when you opened it? Thats my experience of the notification pull down.
but I just found somethign new. I was browsing on mygiffgaff app (I'm in the uk) and suddenly I had location arrow pop up. So I went to settings and nothing has a purple arrow next to it. so what ever just used it is not listed. And if that is happening when I'm not looking at my phone, then that is going to drain the battery and leave no trail.
Seems its not so simple after all and something is hiding on our phones, well mine atleast because i just saw it.