I recently wrote about the battery problems I have been having with my iPhone. A recent incident and a chat in a restaurant has made me rethink the issue. It may not be the age of the battery which is the problem, but the recent iOS software update.
So there I was in the restaurant having taken some photographs of my food (as one does) and the battery life was very low on 5%, so in order to conserve battery life and ensure the phone counted my steps on the way back from the restaurant I turned the phone off. When I turned it back on the battery life was back up to 29% even though I hadn’t charged the phone in between.
So I think in future if I find my battery apparently draining fast, I am going to turn it off and then back on again.