Why would Location services have any impact on a idle iPhone?
Also, why would auto brightness off have a positive impact on battery life? Seems to me that keeping your screen at medium brightness would cost more battery than the iPhone auto dimming it when appropriate (it never sets the brightness above the threshold, only looks if it can set it lower).
Also, why isn't 3G Off part of your list? If there is one particular feature that eats unnecessary battery life then it's 3G networking. It only really adds anything for data speed: not for call quality and especially not when you are near a WiFi point.
And I said almost non off these setting will have impact on battery life...I didnt say they were ideal settings, I said they were the settings that I get good results from.
Same here: I have no use for it most of the time.I forgot to mention I do have 3G off, as I have no use for mobile data transfer 90% of the time, and yes it does eat battery life!
I can understand that, but leaving it off will consume more battery then leaving it on.I have auto brightness turned off because I found that it has virtually no effect on my battery life and it used to irritate me (gorgeous retina display dimming itself too much in some cases and really toning down the impressive display).
But not when idle, that was my point.Location services however will kick in frequently for a lot of apps (unless you have manually turned it off on an app per app basis in settings) so keeping this off unless needed makes sense battery wise.
Yeah, but most of these setting have like zero impact on battery life. Its like saying: I get good battery life if I don't have many apps on my device.EDIT: In samcraigs case (phone idle a lot of the time) I agree that he would not see the full benefit of my personal settings. I included them as I find that with the phone configured this way I get a very very good battery life.
Turning off push actually saves battery...
The standard brightness level becomes a threshold and the iPhone only dims it when necessary, it never overstates is.
Auto-brightness on the iPhone 4 can actually make the screen brighter in a bright environment.