When to turn off iPhone to save battery?
I'm going on a 4 day backpacking trip, and all I have is an iphone 5s to take photos. So, I want to do all I can to save my battery usage. If nothing is running on my iphone, and the screen is dark, at what point is it best to turn it off, with the understanding I'd have to turn it on again to take another picture.
For instance, say I don't see myself taking a picture for another hour. Would it be better to turn the phone off? At what point does this make sense?
thanks!